diff --git a/LICENSE b/LICENSE
new file mode 100644
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,26 @@
+Copyright (c) 2015, Stuart Popejoy
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the
+   distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/Setup.hs b/Setup.hs
new file mode 100644
--- /dev/null
+++ b/Setup.hs
@@ -0,0 +1,2 @@
+import Distribution.Simple
+main = defaultMain
diff --git a/fadno-xml.cabal b/fadno-xml.cabal
new file mode 100644
--- /dev/null
+++ b/fadno-xml.cabal
@@ -0,0 +1,40 @@
+name:                fadno-xml
+version:             1.0.1
+synopsis:            XML/XSD combinators/schemas/codegen
+description:
+            Library for generating code from XML schema files, with
+            MusicXml 2.0 schema library included. Includes
+            XML "combinator library" XParser for consuming xml,
+            a type model for XSD productions, a type model for
+            codegen, and the code generator.
+
+homepage:            http://github.com/slpopejoy/fadno-xml
+license:             BSD2
+license-file:        LICENSE
+author:              Stuart Popejoy
+maintainer:          spopejoy@panix.com
+-- copyright:
+category:            Text
+build-type:          Simple
+-- extra-source-files:
+cabal-version:       >=1.10
+
+library
+  exposed-modules: Fadno.Xml.Codegen
+                   Fadno.Xml.EmitTypes
+                   Fadno.Xml.ParseXsd
+                   Fadno.Xml.XParser
+                   Fadno.Xml.XParse
+                   Fadno.Xml.EmitXml
+                   Fadno.MusicXml.MusicXml20
+  -- other-modules:
+  -- other-extensions:
+  build-depends:       Decimal >= 0.4.2 && <0.5
+                     , base >=4.8 && <4.9
+                     , containers >= 0.5.6 && < 0.6
+                     , lens >=4.12 && <5
+                     , mtl >= 2.2.1 && < 2.3
+                     , parsec >= 3.1.9 && < 3.2
+                     , xml >= 1.3.12 && <1.4
+  hs-source-dirs:      src
+  default-language:    Haskell2010
diff --git a/src/Fadno/MusicXml/MusicXml20.hs b/src/Fadno/MusicXml/MusicXml20.hs
new file mode 100644
--- /dev/null
+++ b/src/Fadno/MusicXml/MusicXml20.hs
@@ -0,0 +1,11623 @@
+{-# LANGUAGE TupleSections #-}
+{-# LANGUAGE DeriveGeneric #-}
+{-# LANGUAGE FlexibleContexts #-}
+{-# LANGUAGE DeriveDataTypeable #-}
+{-# LANGUAGE TemplateHaskell #-}
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE GeneralizedNewtypeDeriving #-}
+{-# LANGUAGE DeriveDataTypeable #-}
+{-# LANGUAGE MultiParamTypeClasses #-}
+
+module Fadno.MusicXml.MusicXml20 where
+
+import GHC.Generics
+import Data.Data
+import Data.Decimal
+import Data.String
+import Fadno.Xml.EmitXml
+import qualified Fadno.Xml.XParse as P
+import qualified Control.Applicative as P
+import Control.Applicative ((<|>))
+import Control.Arrow as A
+
+-- | @xs:ID@ /(simple)/
+newtype ID = ID { iD :: NCName }
+    deriving (Eq,Typeable,Generic,Ord,IsString)
+instance Show ID where show (ID a) = show a
+instance Read ID where readsPrec i = map (A.first ID) . readsPrec i
+instance EmitXml ID where
+    emitXml = emitXml . iD
+parseID :: String -> P.XParse ID
+parseID = return . fromString
+
+-- | @xs:IDREF@ /(simple)/
+newtype IDREF = IDREF { iDREF :: NCName }
+    deriving (Eq,Typeable,Generic,Ord,IsString)
+instance Show IDREF where show (IDREF a) = show a
+instance Read IDREF where readsPrec i = map (A.first IDREF) . readsPrec i
+instance EmitXml IDREF where
+    emitXml = emitXml . iDREF
+parseIDREF :: String -> P.XParse IDREF
+parseIDREF = return . fromString
+
+-- | @xs:NCName@ /(simple)/
+newtype NCName = NCName { nCName :: Name }
+    deriving (Eq,Typeable,Generic,Ord,IsString)
+instance Show NCName where show (NCName a) = show a
+instance Read NCName where readsPrec i = map (A.first NCName) . readsPrec i
+instance EmitXml NCName where
+    emitXml = emitXml . nCName
+parseNCName :: String -> P.XParse NCName
+parseNCName = return . fromString
+
+-- | @xs:NMTOKEN@ /(simple)/
+newtype NMTOKEN = NMTOKEN { nMTOKEN :: Token }
+    deriving (Eq,Typeable,Generic,Ord,IsString)
+instance Show NMTOKEN where show (NMTOKEN a) = show a
+instance Read NMTOKEN where readsPrec i = map (A.first NMTOKEN) . readsPrec i
+instance EmitXml NMTOKEN where
+    emitXml = emitXml . nMTOKEN
+parseNMTOKEN :: String -> P.XParse NMTOKEN
+parseNMTOKEN = return . fromString
+
+-- | @xs:Name@ /(simple)/
+newtype Name = Name { name :: Token }
+    deriving (Eq,Typeable,Generic,Ord,IsString)
+instance Show Name where show (Name a) = show a
+instance Read Name where readsPrec i = map (A.first Name) . readsPrec i
+instance EmitXml Name where
+    emitXml = emitXml . name
+parseName :: String -> P.XParse Name
+parseName = return . fromString
+
+-- | @above-below@ /(simple)/
+--
+-- The above-below type is used to indicate whether one element appears above or below another element.
+data AboveBelow = 
+      AboveBelowAbove -- ^ /above/
+    | AboveBelowBelow -- ^ /below/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml AboveBelow where
+    emitXml AboveBelowAbove = XLit "above"
+    emitXml AboveBelowBelow = XLit "below"
+parseAboveBelow :: String -> P.XParse AboveBelow
+parseAboveBelow s
+        | s == "above" = return $ AboveBelowAbove
+        | s == "below" = return $ AboveBelowBelow
+        | otherwise = P.xfail $ "AboveBelow: " ++ s
+
+-- | @accidental-value@ /(simple)/
+--
+-- The accidental-value type represents notated accidentals supported by MusicXML. In the MusicXML 2.0 DTD this was a string with values that could be included. The XSD strengthens the data typing to an enumerated list.
+data AccidentalValue = 
+      AccidentalValueSharp -- ^ /sharp/
+    | AccidentalValueNatural -- ^ /natural/
+    | AccidentalValueFlat -- ^ /flat/
+    | AccidentalValueDoubleSharp -- ^ /double-sharp/
+    | AccidentalValueSharpSharp -- ^ /sharp-sharp/
+    | AccidentalValueFlatFlat -- ^ /flat-flat/
+    | AccidentalValueNaturalSharp -- ^ /natural-sharp/
+    | AccidentalValueNaturalFlat -- ^ /natural-flat/
+    | AccidentalValueQuarterFlat -- ^ /quarter-flat/
+    | AccidentalValueQuarterSharp -- ^ /quarter-sharp/
+    | AccidentalValueThreeQuartersFlat -- ^ /three-quarters-flat/
+    | AccidentalValueThreeQuartersSharp -- ^ /three-quarters-sharp/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml AccidentalValue where
+    emitXml AccidentalValueSharp = XLit "sharp"
+    emitXml AccidentalValueNatural = XLit "natural"
+    emitXml AccidentalValueFlat = XLit "flat"
+    emitXml AccidentalValueDoubleSharp = XLit "double-sharp"
+    emitXml AccidentalValueSharpSharp = XLit "sharp-sharp"
+    emitXml AccidentalValueFlatFlat = XLit "flat-flat"
+    emitXml AccidentalValueNaturalSharp = XLit "natural-sharp"
+    emitXml AccidentalValueNaturalFlat = XLit "natural-flat"
+    emitXml AccidentalValueQuarterFlat = XLit "quarter-flat"
+    emitXml AccidentalValueQuarterSharp = XLit "quarter-sharp"
+    emitXml AccidentalValueThreeQuartersFlat = XLit "three-quarters-flat"
+    emitXml AccidentalValueThreeQuartersSharp = XLit "three-quarters-sharp"
+parseAccidentalValue :: String -> P.XParse AccidentalValue
+parseAccidentalValue s
+        | s == "sharp" = return $ AccidentalValueSharp
+        | s == "natural" = return $ AccidentalValueNatural
+        | s == "flat" = return $ AccidentalValueFlat
+        | s == "double-sharp" = return $ AccidentalValueDoubleSharp
+        | s == "sharp-sharp" = return $ AccidentalValueSharpSharp
+        | s == "flat-flat" = return $ AccidentalValueFlatFlat
+        | s == "natural-sharp" = return $ AccidentalValueNaturalSharp
+        | s == "natural-flat" = return $ AccidentalValueNaturalFlat
+        | s == "quarter-flat" = return $ AccidentalValueQuarterFlat
+        | s == "quarter-sharp" = return $ AccidentalValueQuarterSharp
+        | s == "three-quarters-flat" = return $ AccidentalValueThreeQuartersFlat
+        | s == "three-quarters-sharp" = return $ AccidentalValueThreeQuartersSharp
+        | otherwise = P.xfail $ "AccidentalValue: " ++ s
+
+-- | @accordion-middle@ /(simple)/
+--
+-- The accordion-middle type may have values of 1, 2, or 3, corresponding to having 1 to 3 dots in the middle section of the accordion registration symbol.
+newtype AccordionMiddle = AccordionMiddle { accordionMiddle :: PositiveInteger }
+    deriving (Eq,Typeable,Generic,Ord,Bounded,Enum,Num,Real,Integral)
+instance Show AccordionMiddle where show (AccordionMiddle a) = show a
+instance Read AccordionMiddle where readsPrec i = map (A.first AccordionMiddle) . readsPrec i
+instance EmitXml AccordionMiddle where
+    emitXml = emitXml . accordionMiddle
+parseAccordionMiddle :: String -> P.XParse AccordionMiddle
+parseAccordionMiddle = P.xread "AccordionMiddle"
+
+-- | @xlink:actuate@ /(simple)/
+data Actuate = 
+      ActuateOnRequest -- ^ /onRequest/
+    | ActuateOnLoad -- ^ /onLoad/
+    | ActuateOther -- ^ /other/
+    | ActuateNone -- ^ /none/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml Actuate where
+    emitXml ActuateOnRequest = XLit "onRequest"
+    emitXml ActuateOnLoad = XLit "onLoad"
+    emitXml ActuateOther = XLit "other"
+    emitXml ActuateNone = XLit "none"
+parseActuate :: String -> P.XParse Actuate
+parseActuate s
+        | s == "onRequest" = return $ ActuateOnRequest
+        | s == "onLoad" = return $ ActuateOnLoad
+        | s == "other" = return $ ActuateOther
+        | s == "none" = return $ ActuateNone
+        | otherwise = P.xfail $ "Actuate: " ++ s
+
+-- | @backward-forward@ /(simple)/
+--
+-- The backward-forward type is used to specify repeat directions. The start of the repeat has a forward direction while the end of the repeat has a backward direction.
+data BackwardForward = 
+      BackwardForwardBackward -- ^ /backward/
+    | BackwardForwardForward -- ^ /forward/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml BackwardForward where
+    emitXml BackwardForwardBackward = XLit "backward"
+    emitXml BackwardForwardForward = XLit "forward"
+parseBackwardForward :: String -> P.XParse BackwardForward
+parseBackwardForward s
+        | s == "backward" = return $ BackwardForwardBackward
+        | s == "forward" = return $ BackwardForwardForward
+        | otherwise = P.xfail $ "BackwardForward: " ++ s
+
+-- | @bar-style@ /(simple)/
+--
+-- The bar-style type represents barline style information. Choices are regular, dotted, dashed, heavy, light-light, light-heavy, heavy-light, heavy-heavy, tick (a short stroke through the top line), short (a partial barline between the 2nd and 4th lines), and none.
+data BarStyle = 
+      BarStyleRegular -- ^ /regular/
+    | BarStyleDotted -- ^ /dotted/
+    | BarStyleDashed -- ^ /dashed/
+    | BarStyleHeavy -- ^ /heavy/
+    | BarStyleLightLight -- ^ /light-light/
+    | BarStyleLightHeavy -- ^ /light-heavy/
+    | BarStyleHeavyLight -- ^ /heavy-light/
+    | BarStyleHeavyHeavy -- ^ /heavy-heavy/
+    | BarStyleTick -- ^ /tick/
+    | BarStyleShort -- ^ /short/
+    | BarStyleNone -- ^ /none/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml BarStyle where
+    emitXml BarStyleRegular = XLit "regular"
+    emitXml BarStyleDotted = XLit "dotted"
+    emitXml BarStyleDashed = XLit "dashed"
+    emitXml BarStyleHeavy = XLit "heavy"
+    emitXml BarStyleLightLight = XLit "light-light"
+    emitXml BarStyleLightHeavy = XLit "light-heavy"
+    emitXml BarStyleHeavyLight = XLit "heavy-light"
+    emitXml BarStyleHeavyHeavy = XLit "heavy-heavy"
+    emitXml BarStyleTick = XLit "tick"
+    emitXml BarStyleShort = XLit "short"
+    emitXml BarStyleNone = XLit "none"
+parseBarStyle :: String -> P.XParse BarStyle
+parseBarStyle s
+        | s == "regular" = return $ BarStyleRegular
+        | s == "dotted" = return $ BarStyleDotted
+        | s == "dashed" = return $ BarStyleDashed
+        | s == "heavy" = return $ BarStyleHeavy
+        | s == "light-light" = return $ BarStyleLightLight
+        | s == "light-heavy" = return $ BarStyleLightHeavy
+        | s == "heavy-light" = return $ BarStyleHeavyLight
+        | s == "heavy-heavy" = return $ BarStyleHeavyHeavy
+        | s == "tick" = return $ BarStyleTick
+        | s == "short" = return $ BarStyleShort
+        | s == "none" = return $ BarStyleNone
+        | otherwise = P.xfail $ "BarStyle: " ++ s
+
+-- | @beam-level@ /(simple)/
+--
+-- The MusicXML format supports six levels of beaming, up to 256th notes. Unlike the number-level type, the beam-level type identifies concurrent beams in a beam group. It does not distinguish overlapping beams such as grace notes within regular notes, or beams used in different voices.
+newtype BeamLevel = BeamLevel { beamLevel :: PositiveInteger }
+    deriving (Eq,Typeable,Generic,Ord,Bounded,Enum,Num,Real,Integral)
+instance Show BeamLevel where show (BeamLevel a) = show a
+instance Read BeamLevel where readsPrec i = map (A.first BeamLevel) . readsPrec i
+instance EmitXml BeamLevel where
+    emitXml = emitXml . beamLevel
+parseBeamLevel :: String -> P.XParse BeamLevel
+parseBeamLevel = P.xread "BeamLevel"
+
+-- | @beam-value@ /(simple)/
+--
+-- The beam-value type represents the type of beam associated with each of 6 beam levels (up to 256th notes) available for each note.
+data BeamValue = 
+      BeamValueBegin -- ^ /begin/
+    | BeamValueContinue -- ^ /continue/
+    | BeamValueEnd -- ^ /end/
+    | BeamValueForwardHook -- ^ /forward hook/
+    | BeamValueBackwardHook -- ^ /backward hook/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml BeamValue where
+    emitXml BeamValueBegin = XLit "begin"
+    emitXml BeamValueContinue = XLit "continue"
+    emitXml BeamValueEnd = XLit "end"
+    emitXml BeamValueForwardHook = XLit "forward hook"
+    emitXml BeamValueBackwardHook = XLit "backward hook"
+parseBeamValue :: String -> P.XParse BeamValue
+parseBeamValue s
+        | s == "begin" = return $ BeamValueBegin
+        | s == "continue" = return $ BeamValueContinue
+        | s == "end" = return $ BeamValueEnd
+        | s == "forward hook" = return $ BeamValueForwardHook
+        | s == "backward hook" = return $ BeamValueBackwardHook
+        | otherwise = P.xfail $ "BeamValue: " ++ s
+
+-- | @clef-sign@ /(simple)/
+--
+-- The clef-sign element represents the different clef symbols.
+data ClefSign = 
+      ClefSignG -- ^ /G/
+    | ClefSignF -- ^ /F/
+    | ClefSignC -- ^ /C/
+    | ClefSignPercussion -- ^ /percussion/
+    | ClefSignTAB -- ^ /TAB/
+    | ClefSignNone -- ^ /none/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml ClefSign where
+    emitXml ClefSignG = XLit "G"
+    emitXml ClefSignF = XLit "F"
+    emitXml ClefSignC = XLit "C"
+    emitXml ClefSignPercussion = XLit "percussion"
+    emitXml ClefSignTAB = XLit "TAB"
+    emitXml ClefSignNone = XLit "none"
+parseClefSign :: String -> P.XParse ClefSign
+parseClefSign s
+        | s == "G" = return $ ClefSignG
+        | s == "F" = return $ ClefSignF
+        | s == "C" = return $ ClefSignC
+        | s == "percussion" = return $ ClefSignPercussion
+        | s == "TAB" = return $ ClefSignTAB
+        | s == "none" = return $ ClefSignNone
+        | otherwise = P.xfail $ "ClefSign: " ++ s
+
+-- | @color@ /(simple)/
+--
+-- The color type indicates the color of an element. Color may be represented as hexadecimal RGB triples, as in HTML, or as hexadecimal ARGB tuples, with the A indicating alpha of transparency. An alpha value of 00 is totally transparent; FF is totally opaque. If RGB is used, the A value is assumed to be FF. 
+-- 
+-- For instance, the RGB value "#800080" represents purple. An ARGB value of "#40800080" would be a transparent purple.
+-- 
+-- As in SVG 1.1, colors are defined in terms of the sRGB color space (IEC 61966).
+newtype Color = Color { color :: Token }
+    deriving (Eq,Typeable,Generic,Ord,IsString)
+instance Show Color where show (Color a) = show a
+instance Read Color where readsPrec i = map (A.first Color) . readsPrec i
+instance EmitXml Color where
+    emitXml = emitXml . color
+parseColor :: String -> P.XParse Color
+parseColor = return . fromString
+
+-- | @comma-separated-text@ /(simple)/
+--
+-- The comma-separated-text type is used to specify a comma-separated list of text elements, as is used by the font-family attribute.
+newtype CommaSeparatedText = CommaSeparatedText { commaSeparatedText :: Token }
+    deriving (Eq,Typeable,Generic,Ord,IsString)
+instance Show CommaSeparatedText where show (CommaSeparatedText a) = show a
+instance Read CommaSeparatedText where readsPrec i = map (A.first CommaSeparatedText) . readsPrec i
+instance EmitXml CommaSeparatedText where
+    emitXml = emitXml . commaSeparatedText
+parseCommaSeparatedText :: String -> P.XParse CommaSeparatedText
+parseCommaSeparatedText = return . fromString
+
+-- | @css-font-size@ /(simple)/
+--
+-- The css-font-size type includes the CSS font sizes used as an alternative to a numeric point size.
+data CssFontSize = 
+      CssFontSizeXxSmall -- ^ /xx-small/
+    | CssFontSizeXSmall -- ^ /x-small/
+    | CssFontSizeSmall -- ^ /small/
+    | CssFontSizeMedium -- ^ /medium/
+    | CssFontSizeLarge -- ^ /large/
+    | CssFontSizeXLarge -- ^ /x-large/
+    | CssFontSizeXxLarge -- ^ /xx-large/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml CssFontSize where
+    emitXml CssFontSizeXxSmall = XLit "xx-small"
+    emitXml CssFontSizeXSmall = XLit "x-small"
+    emitXml CssFontSizeSmall = XLit "small"
+    emitXml CssFontSizeMedium = XLit "medium"
+    emitXml CssFontSizeLarge = XLit "large"
+    emitXml CssFontSizeXLarge = XLit "x-large"
+    emitXml CssFontSizeXxLarge = XLit "xx-large"
+parseCssFontSize :: String -> P.XParse CssFontSize
+parseCssFontSize s
+        | s == "xx-small" = return $ CssFontSizeXxSmall
+        | s == "x-small" = return $ CssFontSizeXSmall
+        | s == "small" = return $ CssFontSizeSmall
+        | s == "medium" = return $ CssFontSizeMedium
+        | s == "large" = return $ CssFontSizeLarge
+        | s == "x-large" = return $ CssFontSizeXLarge
+        | s == "xx-large" = return $ CssFontSizeXxLarge
+        | otherwise = P.xfail $ "CssFontSize: " ++ s
+
+-- | @degree-type-value@ /(simple)/
+--
+-- The degree-type-value type indicates whether the current degree element is an addition, alteration, or subtraction to the kind of the current chord in the harmony element.
+data DegreeTypeValue = 
+      DegreeTypeValueAdd -- ^ /add/
+    | DegreeTypeValueAlter -- ^ /alter/
+    | DegreeTypeValueSubtract -- ^ /subtract/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml DegreeTypeValue where
+    emitXml DegreeTypeValueAdd = XLit "add"
+    emitXml DegreeTypeValueAlter = XLit "alter"
+    emitXml DegreeTypeValueSubtract = XLit "subtract"
+parseDegreeTypeValue :: String -> P.XParse DegreeTypeValue
+parseDegreeTypeValue s
+        | s == "add" = return $ DegreeTypeValueAdd
+        | s == "alter" = return $ DegreeTypeValueAlter
+        | s == "subtract" = return $ DegreeTypeValueSubtract
+        | otherwise = P.xfail $ "DegreeTypeValue: " ++ s
+
+-- | @divisions@ /(simple)/
+--
+-- The divisions type is used to express values in terms of the musical divisions defined by the divisions element. It is preferred that these be integer values both for MIDI interoperability and to avoid roundoff errors.
+newtype Divisions = Divisions { divisions :: Decimal }
+    deriving (Eq,Typeable,Generic,Ord,Num,Real,Fractional,RealFrac)
+instance Show Divisions where show (Divisions a) = show a
+instance Read Divisions where readsPrec i = map (A.first Divisions) . readsPrec i
+instance EmitXml Divisions where
+    emitXml = emitXml . divisions
+parseDivisions :: String -> P.XParse Divisions
+parseDivisions = P.xread "Divisions"
+
+-- | @enclosure@ /(simple)/
+--
+-- The enclosure type describes the shape and presence / absence of an enclosure around text.
+data Enclosure = 
+      EnclosureRectangle -- ^ /rectangle/
+    | EnclosureOval -- ^ /oval/
+    | EnclosureNone -- ^ /none/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml Enclosure where
+    emitXml EnclosureRectangle = XLit "rectangle"
+    emitXml EnclosureOval = XLit "oval"
+    emitXml EnclosureNone = XLit "none"
+parseEnclosure :: String -> P.XParse Enclosure
+parseEnclosure s
+        | s == "rectangle" = return $ EnclosureRectangle
+        | s == "oval" = return $ EnclosureOval
+        | s == "none" = return $ EnclosureNone
+        | otherwise = P.xfail $ "Enclosure: " ++ s
+
+-- | @ending-number@ /(simple)/
+--
+-- The ending-number type is used to specify either a comma-separated list of positive integers without leading zeros, or a string of zero or more spaces. It is used for the number attribute of the ending element. The zero or more spaces version is used when software knows that an ending is present, but cannot determine the type of the ending.
+newtype EndingNumber = EndingNumber { endingNumber :: Token }
+    deriving (Eq,Typeable,Generic,Ord,IsString)
+instance Show EndingNumber where show (EndingNumber a) = show a
+instance Read EndingNumber where readsPrec i = map (A.first EndingNumber) . readsPrec i
+instance EmitXml EndingNumber where
+    emitXml = emitXml . endingNumber
+parseEndingNumber :: String -> P.XParse EndingNumber
+parseEndingNumber = return . fromString
+
+-- | @fan@ /(simple)/
+--
+-- The fan type represents the type of beam fanning present on a note, used to represent accelerandos and ritardandos.
+data Fan = 
+      FanAccel -- ^ /accel/
+    | FanRit -- ^ /rit/
+    | FanNone -- ^ /none/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml Fan where
+    emitXml FanAccel = XLit "accel"
+    emitXml FanRit = XLit "rit"
+    emitXml FanNone = XLit "none"
+parseFan :: String -> P.XParse Fan
+parseFan s
+        | s == "accel" = return $ FanAccel
+        | s == "rit" = return $ FanRit
+        | s == "none" = return $ FanNone
+        | otherwise = P.xfail $ "Fan: " ++ s
+
+-- | @fermata-shape@ /(simple)/
+--
+-- The fermata-shape type represents the shape of the fermata sign. The empty value is equivalent to the normal value.
+data FermataShape = 
+      FermataShapeNormal -- ^ /normal/
+    | FermataShapeAngled -- ^ /angled/
+    | FermataShapeSquare -- ^ /square/
+    | FermataShape -- ^ //
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml FermataShape where
+    emitXml FermataShapeNormal = XLit "normal"
+    emitXml FermataShapeAngled = XLit "angled"
+    emitXml FermataShapeSquare = XLit "square"
+    emitXml FermataShape = XLit ""
+parseFermataShape :: String -> P.XParse FermataShape
+parseFermataShape s
+        | s == "normal" = return $ FermataShapeNormal
+        | s == "angled" = return $ FermataShapeAngled
+        | s == "square" = return $ FermataShapeSquare
+        | s == "" = return $ FermataShape
+        | otherwise = P.xfail $ "FermataShape: " ++ s
+
+-- | @fifths@ /(simple)/
+--
+-- The fifths type represents the number of flats or sharps in a traditional key signature. Negative numbers are used for flats and positive numbers for sharps, reflecting the key's placement within the circle of fifths (hence the type name).
+newtype Fifths = Fifths { fifths :: Int }
+    deriving (Eq,Typeable,Generic,Ord,Bounded,Enum,Num,Real,Integral)
+instance Show Fifths where show (Fifths a) = show a
+instance Read Fifths where readsPrec i = map (A.first Fifths) . readsPrec i
+instance EmitXml Fifths where
+    emitXml = emitXml . fifths
+parseFifths :: String -> P.XParse Fifths
+parseFifths = P.xread "Fifths"
+
+-- | @font-size@ /(simple)/
+--
+-- The font-size can be one of the CSS font sizes or a numeric point size.
+data FontSize = 
+      FontSizeDecimal {
+          fontSize1 :: Decimal
+       }
+    | FontSizeCssFontSize {
+          fontSize2 :: CssFontSize
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml FontSize where
+    emitXml (FontSizeDecimal a) = emitXml a
+    emitXml (FontSizeCssFontSize a) = emitXml a
+parseFontSize :: String -> P.XParse FontSize
+parseFontSize s = 
+      FontSizeDecimal
+        <$> (P.xread "Decimal") s
+      <|> FontSizeCssFontSize
+        <$> parseCssFontSize s
+
+
+-- | @font-style@ /(simple)/
+--
+-- The font-style type represents a simplified version of the CSS font-style property.
+data FontStyle = 
+      FontStyleNormal -- ^ /normal/
+    | FontStyleItalic -- ^ /italic/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml FontStyle where
+    emitXml FontStyleNormal = XLit "normal"
+    emitXml FontStyleItalic = XLit "italic"
+parseFontStyle :: String -> P.XParse FontStyle
+parseFontStyle s
+        | s == "normal" = return $ FontStyleNormal
+        | s == "italic" = return $ FontStyleItalic
+        | otherwise = P.xfail $ "FontStyle: " ++ s
+
+-- | @font-weight@ /(simple)/
+--
+-- The font-weight type represents a simplified version of the CSS font-weight property.
+data FontWeight = 
+      FontWeightNormal -- ^ /normal/
+    | FontWeightBold -- ^ /bold/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml FontWeight where
+    emitXml FontWeightNormal = XLit "normal"
+    emitXml FontWeightBold = XLit "bold"
+parseFontWeight :: String -> P.XParse FontWeight
+parseFontWeight s
+        | s == "normal" = return $ FontWeightNormal
+        | s == "bold" = return $ FontWeightBold
+        | otherwise = P.xfail $ "FontWeight: " ++ s
+
+-- | @group-barline-value@ /(simple)/
+--
+-- The group-barline-value type indicates if the group should have common barlines.
+data GroupBarlineValue = 
+      GroupBarlineValueYes -- ^ /yes/
+    | GroupBarlineValueNo -- ^ /no/
+    | GroupBarlineValueMensurstrich -- ^ /Mensurstrich/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml GroupBarlineValue where
+    emitXml GroupBarlineValueYes = XLit "yes"
+    emitXml GroupBarlineValueNo = XLit "no"
+    emitXml GroupBarlineValueMensurstrich = XLit "Mensurstrich"
+parseGroupBarlineValue :: String -> P.XParse GroupBarlineValue
+parseGroupBarlineValue s
+        | s == "yes" = return $ GroupBarlineValueYes
+        | s == "no" = return $ GroupBarlineValueNo
+        | s == "Mensurstrich" = return $ GroupBarlineValueMensurstrich
+        | otherwise = P.xfail $ "GroupBarlineValue: " ++ s
+
+-- | @group-symbol-value@ /(simple)/
+--
+-- The group-symbol-value type indicates how the symbol for a group is indicated in the score. The default value is none.
+data GroupSymbolValue = 
+      GroupSymbolValueNone -- ^ /none/
+    | GroupSymbolValueBrace -- ^ /brace/
+    | GroupSymbolValueLine -- ^ /line/
+    | GroupSymbolValueBracket -- ^ /bracket/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml GroupSymbolValue where
+    emitXml GroupSymbolValueNone = XLit "none"
+    emitXml GroupSymbolValueBrace = XLit "brace"
+    emitXml GroupSymbolValueLine = XLit "line"
+    emitXml GroupSymbolValueBracket = XLit "bracket"
+parseGroupSymbolValue :: String -> P.XParse GroupSymbolValue
+parseGroupSymbolValue s
+        | s == "none" = return $ GroupSymbolValueNone
+        | s == "brace" = return $ GroupSymbolValueBrace
+        | s == "line" = return $ GroupSymbolValueLine
+        | s == "bracket" = return $ GroupSymbolValueBracket
+        | otherwise = P.xfail $ "GroupSymbolValue: " ++ s
+
+-- | @harmony-type@ /(simple)/
+--
+-- The harmony-type type differentiates different types of harmonies when alternate harmonies are possible. Explicit harmonies have all note present in the music; implied have some notes missing but implied; alternate represents alternate analyses.
+data HarmonyType = 
+      HarmonyTypeExplicit -- ^ /explicit/
+    | HarmonyTypeImplied -- ^ /implied/
+    | HarmonyTypeAlternate -- ^ /alternate/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml HarmonyType where
+    emitXml HarmonyTypeExplicit = XLit "explicit"
+    emitXml HarmonyTypeImplied = XLit "implied"
+    emitXml HarmonyTypeAlternate = XLit "alternate"
+parseHarmonyType :: String -> P.XParse HarmonyType
+parseHarmonyType s
+        | s == "explicit" = return $ HarmonyTypeExplicit
+        | s == "implied" = return $ HarmonyTypeImplied
+        | s == "alternate" = return $ HarmonyTypeAlternate
+        | otherwise = P.xfail $ "HarmonyType: " ++ s
+
+-- | @kind-value@ /(simple)/
+--
+-- A kind-value indicates the type of chord. Degree elements can then add, subtract, or alter from these starting points. Values include:
+--
+-- @
+-- 	
+-- Triads:
+-- 	major (major third, perfect fifth)
+-- 	minor (minor third, perfect fifth)
+-- 	augmented (major third, augmented fifth)
+-- 	diminished (minor third, diminished fifth)
+-- Sevenths:
+-- 	dominant (major triad, minor seventh)
+-- 	major-seventh (major triad, major seventh)
+-- 	minor-seventh (minor triad, minor seventh)
+-- 	diminished-seventh (diminished triad, diminished seventh)
+-- 	augmented-seventh (augmented triad, minor seventh)
+-- 	half-diminished (diminished triad, minor seventh)
+-- 	major-minor (minor triad, major seventh)
+-- Sixths:
+-- 	major-sixth (major triad, added sixth)
+-- 	minor-sixth (minor triad, added sixth)
+-- Ninths:
+-- 	dominant-ninth (dominant-seventh, major ninth)
+-- 	major-ninth (major-seventh, major ninth)
+-- 	minor-ninth (minor-seventh, major ninth)
+-- 11ths (usually as the basis for alteration):
+-- 	dominant-11th (dominant-ninth, perfect 11th)
+-- 	major-11th (major-ninth, perfect 11th)
+-- 	minor-11th (minor-ninth, perfect 11th)
+-- 13ths (usually as the basis for alteration):
+-- 	dominant-13th (dominant-11th, major 13th)
+-- 	major-13th (major-11th, major 13th)
+-- 	minor-13th (minor-11th, major 13th)
+-- Suspended:
+-- 	suspended-second (major second, perfect fifth)
+-- 	suspended-fourth (perfect fourth, perfect fifth)
+-- Functional sixths:
+-- 	Neapolitan
+-- 	Italian
+-- 	French
+-- 	German
+-- Other:
+-- 	pedal (pedal-point bass)
+-- 	power (perfect fifth)
+-- 	Tristan
+-- 	
+-- The "other" kind is used when the harmony is entirely composed of add elements. The "none" kind is used to explicitly encode absence of chords or functional harmony.
+-- @
+data KindValue = 
+      KindValueMajor -- ^ /major/
+    | KindValueMinor -- ^ /minor/
+    | KindValueAugmented -- ^ /augmented/
+    | KindValueDiminished -- ^ /diminished/
+    | KindValueDominant -- ^ /dominant/
+    | KindValueMajorSeventh -- ^ /major-seventh/
+    | KindValueMinorSeventh -- ^ /minor-seventh/
+    | KindValueDiminishedSeventh -- ^ /diminished-seventh/
+    | KindValueAugmentedSeventh -- ^ /augmented-seventh/
+    | KindValueHalfDiminished -- ^ /half-diminished/
+    | KindValueMajorMinor -- ^ /major-minor/
+    | KindValueMajorSixth -- ^ /major-sixth/
+    | KindValueMinorSixth -- ^ /minor-sixth/
+    | KindValueDominantNinth -- ^ /dominant-ninth/
+    | KindValueMajorNinth -- ^ /major-ninth/
+    | KindValueMinorNinth -- ^ /minor-ninth/
+    | KindValueDominant11th -- ^ /dominant-11th/
+    | KindValueMajor11th -- ^ /major-11th/
+    | KindValueMinor11th -- ^ /minor-11th/
+    | KindValueDominant13th -- ^ /dominant-13th/
+    | KindValueMajor13th -- ^ /major-13th/
+    | KindValueMinor13th -- ^ /minor-13th/
+    | KindValueSuspendedSecond -- ^ /suspended-second/
+    | KindValueSuspendedFourth -- ^ /suspended-fourth/
+    | KindValueNeapolitan -- ^ /Neapolitan/
+    | KindValueItalian -- ^ /Italian/
+    | KindValueFrench -- ^ /French/
+    | KindValueGerman -- ^ /German/
+    | KindValuePedal -- ^ /pedal/
+    | KindValuePower -- ^ /power/
+    | KindValueTristan -- ^ /Tristan/
+    | KindValueOther -- ^ /other/
+    | KindValueNone -- ^ /none/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml KindValue where
+    emitXml KindValueMajor = XLit "major"
+    emitXml KindValueMinor = XLit "minor"
+    emitXml KindValueAugmented = XLit "augmented"
+    emitXml KindValueDiminished = XLit "diminished"
+    emitXml KindValueDominant = XLit "dominant"
+    emitXml KindValueMajorSeventh = XLit "major-seventh"
+    emitXml KindValueMinorSeventh = XLit "minor-seventh"
+    emitXml KindValueDiminishedSeventh = XLit "diminished-seventh"
+    emitXml KindValueAugmentedSeventh = XLit "augmented-seventh"
+    emitXml KindValueHalfDiminished = XLit "half-diminished"
+    emitXml KindValueMajorMinor = XLit "major-minor"
+    emitXml KindValueMajorSixth = XLit "major-sixth"
+    emitXml KindValueMinorSixth = XLit "minor-sixth"
+    emitXml KindValueDominantNinth = XLit "dominant-ninth"
+    emitXml KindValueMajorNinth = XLit "major-ninth"
+    emitXml KindValueMinorNinth = XLit "minor-ninth"
+    emitXml KindValueDominant11th = XLit "dominant-11th"
+    emitXml KindValueMajor11th = XLit "major-11th"
+    emitXml KindValueMinor11th = XLit "minor-11th"
+    emitXml KindValueDominant13th = XLit "dominant-13th"
+    emitXml KindValueMajor13th = XLit "major-13th"
+    emitXml KindValueMinor13th = XLit "minor-13th"
+    emitXml KindValueSuspendedSecond = XLit "suspended-second"
+    emitXml KindValueSuspendedFourth = XLit "suspended-fourth"
+    emitXml KindValueNeapolitan = XLit "Neapolitan"
+    emitXml KindValueItalian = XLit "Italian"
+    emitXml KindValueFrench = XLit "French"
+    emitXml KindValueGerman = XLit "German"
+    emitXml KindValuePedal = XLit "pedal"
+    emitXml KindValuePower = XLit "power"
+    emitXml KindValueTristan = XLit "Tristan"
+    emitXml KindValueOther = XLit "other"
+    emitXml KindValueNone = XLit "none"
+parseKindValue :: String -> P.XParse KindValue
+parseKindValue s
+        | s == "major" = return $ KindValueMajor
+        | s == "minor" = return $ KindValueMinor
+        | s == "augmented" = return $ KindValueAugmented
+        | s == "diminished" = return $ KindValueDiminished
+        | s == "dominant" = return $ KindValueDominant
+        | s == "major-seventh" = return $ KindValueMajorSeventh
+        | s == "minor-seventh" = return $ KindValueMinorSeventh
+        | s == "diminished-seventh" = return $ KindValueDiminishedSeventh
+        | s == "augmented-seventh" = return $ KindValueAugmentedSeventh
+        | s == "half-diminished" = return $ KindValueHalfDiminished
+        | s == "major-minor" = return $ KindValueMajorMinor
+        | s == "major-sixth" = return $ KindValueMajorSixth
+        | s == "minor-sixth" = return $ KindValueMinorSixth
+        | s == "dominant-ninth" = return $ KindValueDominantNinth
+        | s == "major-ninth" = return $ KindValueMajorNinth
+        | s == "minor-ninth" = return $ KindValueMinorNinth
+        | s == "dominant-11th" = return $ KindValueDominant11th
+        | s == "major-11th" = return $ KindValueMajor11th
+        | s == "minor-11th" = return $ KindValueMinor11th
+        | s == "dominant-13th" = return $ KindValueDominant13th
+        | s == "major-13th" = return $ KindValueMajor13th
+        | s == "minor-13th" = return $ KindValueMinor13th
+        | s == "suspended-second" = return $ KindValueSuspendedSecond
+        | s == "suspended-fourth" = return $ KindValueSuspendedFourth
+        | s == "Neapolitan" = return $ KindValueNeapolitan
+        | s == "Italian" = return $ KindValueItalian
+        | s == "French" = return $ KindValueFrench
+        | s == "German" = return $ KindValueGerman
+        | s == "pedal" = return $ KindValuePedal
+        | s == "power" = return $ KindValuePower
+        | s == "Tristan" = return $ KindValueTristan
+        | s == "other" = return $ KindValueOther
+        | s == "none" = return $ KindValueNone
+        | otherwise = P.xfail $ "KindValue: " ++ s
+
+-- | @xml:lang@ /(simple)/
+data Lang = 
+      LangLanguage {
+          lang1 :: Language
+       }
+    | LangLang {
+          lang2 :: SumLang
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Lang where
+    emitXml (LangLanguage a) = emitXml a
+    emitXml (LangLang a) = emitXml a
+parseLang :: String -> P.XParse Lang
+parseLang s = 
+      LangLanguage
+        <$> parseLanguage s
+      <|> LangLang
+        <$> parseSumLang s
+
+
+-- | @xs:language@ /(simple)/
+newtype Language = Language { language :: Token }
+    deriving (Eq,Typeable,Generic,Ord,IsString)
+instance Show Language where show (Language a) = show a
+instance Read Language where readsPrec i = map (A.first Language) . readsPrec i
+instance EmitXml Language where
+    emitXml = emitXml . language
+parseLanguage :: String -> P.XParse Language
+parseLanguage = return . fromString
+
+-- | @left-center-right@ /(simple)/
+--
+-- The left-center-right type is used to define horizontal alignment and text justification.
+data LeftCenterRight = 
+      LeftCenterRightLeft -- ^ /left/
+    | LeftCenterRightCenter -- ^ /center/
+    | LeftCenterRightRight -- ^ /right/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml LeftCenterRight where
+    emitXml LeftCenterRightLeft = XLit "left"
+    emitXml LeftCenterRightCenter = XLit "center"
+    emitXml LeftCenterRightRight = XLit "right"
+parseLeftCenterRight :: String -> P.XParse LeftCenterRight
+parseLeftCenterRight s
+        | s == "left" = return $ LeftCenterRightLeft
+        | s == "center" = return $ LeftCenterRightCenter
+        | s == "right" = return $ LeftCenterRightRight
+        | otherwise = P.xfail $ "LeftCenterRight: " ++ s
+
+-- | @left-right@ /(simple)/
+--
+-- The left-right type is used to indicate whether one element appears to the left or the right of another element.
+data LeftRight = 
+      LeftRightLeft -- ^ /left/
+    | LeftRightRight -- ^ /right/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml LeftRight where
+    emitXml LeftRightLeft = XLit "left"
+    emitXml LeftRightRight = XLit "right"
+parseLeftRight :: String -> P.XParse LeftRight
+parseLeftRight s
+        | s == "left" = return $ LeftRightLeft
+        | s == "right" = return $ LeftRightRight
+        | otherwise = P.xfail $ "LeftRight: " ++ s
+
+-- | @line-end@ /(simple)/
+--
+-- The line-end type specifies if there is a jog up or down (or both), an arrow, or nothing at the start or end of a bracket.
+data LineEnd = 
+      LineEndUp -- ^ /up/
+    | LineEndDown -- ^ /down/
+    | LineEndBoth -- ^ /both/
+    | LineEndArrow -- ^ /arrow/
+    | LineEndNone -- ^ /none/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml LineEnd where
+    emitXml LineEndUp = XLit "up"
+    emitXml LineEndDown = XLit "down"
+    emitXml LineEndBoth = XLit "both"
+    emitXml LineEndArrow = XLit "arrow"
+    emitXml LineEndNone = XLit "none"
+parseLineEnd :: String -> P.XParse LineEnd
+parseLineEnd s
+        | s == "up" = return $ LineEndUp
+        | s == "down" = return $ LineEndDown
+        | s == "both" = return $ LineEndBoth
+        | s == "arrow" = return $ LineEndArrow
+        | s == "none" = return $ LineEndNone
+        | otherwise = P.xfail $ "LineEnd: " ++ s
+
+-- | @line-shape@ /(simple)/
+--
+-- The line-shape type distinguishes between straight and curved lines.
+data LineShape = 
+      LineShapeStraight -- ^ /straight/
+    | LineShapeCurved -- ^ /curved/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml LineShape where
+    emitXml LineShapeStraight = XLit "straight"
+    emitXml LineShapeCurved = XLit "curved"
+parseLineShape :: String -> P.XParse LineShape
+parseLineShape s
+        | s == "straight" = return $ LineShapeStraight
+        | s == "curved" = return $ LineShapeCurved
+        | otherwise = P.xfail $ "LineShape: " ++ s
+
+-- | @line-type@ /(simple)/
+--
+-- The line-type type distinguishes between solid, dashed, dotted, and wavy lines.
+data LineType = 
+      LineTypeSolid -- ^ /solid/
+    | LineTypeDashed -- ^ /dashed/
+    | LineTypeDotted -- ^ /dotted/
+    | LineTypeWavy -- ^ /wavy/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml LineType where
+    emitXml LineTypeSolid = XLit "solid"
+    emitXml LineTypeDashed = XLit "dashed"
+    emitXml LineTypeDotted = XLit "dotted"
+    emitXml LineTypeWavy = XLit "wavy"
+parseLineType :: String -> P.XParse LineType
+parseLineType s
+        | s == "solid" = return $ LineTypeSolid
+        | s == "dashed" = return $ LineTypeDashed
+        | s == "dotted" = return $ LineTypeDotted
+        | s == "wavy" = return $ LineTypeWavy
+        | otherwise = P.xfail $ "LineType: " ++ s
+
+-- | @line-width-type@ /(simple)/
+--
+-- The line-width-type defines what type of line is being defined in a line-width element. Values include beam, bracket, dashes, enclosure, ending, extend, heavy barline, leger, light barline, octave shift, pedal, slur middle, slur tip, staff, stem, tie middle, tie tip, tuplet bracket, and wedge. This is left as a string so that other application-specific types can be defined, but it is made a separate type so that it can be redefined more strictly.
+newtype LineWidthType = LineWidthType { lineWidthType :: Token }
+    deriving (Eq,Typeable,Generic,Ord,IsString)
+instance Show LineWidthType where show (LineWidthType a) = show a
+instance Read LineWidthType where readsPrec i = map (A.first LineWidthType) . readsPrec i
+instance EmitXml LineWidthType where
+    emitXml = emitXml . lineWidthType
+parseLineWidthType :: String -> P.XParse LineWidthType
+parseLineWidthType = return . fromString
+
+-- | @margin-type@ /(simple)/
+--
+-- The margin-type type specifies whether margins apply to even page, odd pages, or both.
+data MarginType = 
+      MarginTypeOdd -- ^ /odd/
+    | MarginTypeEven -- ^ /even/
+    | MarginTypeBoth -- ^ /both/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml MarginType where
+    emitXml MarginTypeOdd = XLit "odd"
+    emitXml MarginTypeEven = XLit "even"
+    emitXml MarginTypeBoth = XLit "both"
+parseMarginType :: String -> P.XParse MarginType
+parseMarginType s
+        | s == "odd" = return $ MarginTypeOdd
+        | s == "even" = return $ MarginTypeEven
+        | s == "both" = return $ MarginTypeBoth
+        | otherwise = P.xfail $ "MarginType: " ++ s
+
+-- | @measure-numbering-value@ /(simple)/
+--
+-- The measure-numbering-value type describes how measure numbers are displayed on this part: no numbers, numbers every measure, or numbers every system.
+data MeasureNumberingValue = 
+      MeasureNumberingValueNone -- ^ /none/
+    | MeasureNumberingValueMeasure -- ^ /measure/
+    | MeasureNumberingValueSystem -- ^ /system/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml MeasureNumberingValue where
+    emitXml MeasureNumberingValueNone = XLit "none"
+    emitXml MeasureNumberingValueMeasure = XLit "measure"
+    emitXml MeasureNumberingValueSystem = XLit "system"
+parseMeasureNumberingValue :: String -> P.XParse MeasureNumberingValue
+parseMeasureNumberingValue s
+        | s == "none" = return $ MeasureNumberingValueNone
+        | s == "measure" = return $ MeasureNumberingValueMeasure
+        | s == "system" = return $ MeasureNumberingValueSystem
+        | otherwise = P.xfail $ "MeasureNumberingValue: " ++ s
+
+-- | @midi-128@ /(simple)/
+--
+-- The midi-16 type is used to express MIDI 1.0 values that range from 1 to 128.
+newtype Midi128 = Midi128 { midi128 :: PositiveInteger }
+    deriving (Eq,Typeable,Generic,Ord,Bounded,Enum,Num,Real,Integral)
+instance Show Midi128 where show (Midi128 a) = show a
+instance Read Midi128 where readsPrec i = map (A.first Midi128) . readsPrec i
+instance EmitXml Midi128 where
+    emitXml = emitXml . midi128
+parseMidi128 :: String -> P.XParse Midi128
+parseMidi128 = P.xread "Midi128"
+
+-- | @midi-16@ /(simple)/
+--
+-- The midi-16 type is used to express MIDI 1.0 values that range from 1 to 16.
+newtype Midi16 = Midi16 { midi16 :: PositiveInteger }
+    deriving (Eq,Typeable,Generic,Ord,Bounded,Enum,Num,Real,Integral)
+instance Show Midi16 where show (Midi16 a) = show a
+instance Read Midi16 where readsPrec i = map (A.first Midi16) . readsPrec i
+instance EmitXml Midi16 where
+    emitXml = emitXml . midi16
+parseMidi16 :: String -> P.XParse Midi16
+parseMidi16 = P.xread "Midi16"
+
+-- | @midi-16384@ /(simple)/
+--
+-- The midi-16 type is used to express MIDI 1.0 values that range from 1 to 16,384.
+newtype Midi16384 = Midi16384 { midi16384 :: PositiveInteger }
+    deriving (Eq,Typeable,Generic,Ord,Bounded,Enum,Num,Real,Integral)
+instance Show Midi16384 where show (Midi16384 a) = show a
+instance Read Midi16384 where readsPrec i = map (A.first Midi16384) . readsPrec i
+instance EmitXml Midi16384 where
+    emitXml = emitXml . midi16384
+parseMidi16384 :: String -> P.XParse Midi16384
+parseMidi16384 = P.xread "Midi16384"
+
+-- | @millimeters@ /(simple)/
+--
+-- The millimeters type is a number representing millimeters. This is used in the scaling element to provide a default scaling from tenths to physical units.
+newtype Millimeters = Millimeters { millimeters :: Decimal }
+    deriving (Eq,Typeable,Generic,Ord,Num,Real,Fractional,RealFrac)
+instance Show Millimeters where show (Millimeters a) = show a
+instance Read Millimeters where readsPrec i = map (A.first Millimeters) . readsPrec i
+instance EmitXml Millimeters where
+    emitXml = emitXml . millimeters
+parseMillimeters :: String -> P.XParse Millimeters
+parseMillimeters = P.xread "Millimeters"
+
+-- | @mode@ /(simple)/
+--
+-- The mode type is used to specify major/minor and other mode distinctions. Valid mode values include major, minor, dorian, phrygian, lydian, mixolydian, aeolian, ionian, and locrian.
+newtype Mode = Mode { mode :: String }
+    deriving (Eq,Typeable,Generic,Ord,IsString)
+instance Show Mode where show (Mode a) = show a
+instance Read Mode where readsPrec i = map (A.first Mode) . readsPrec i
+instance EmitXml Mode where
+    emitXml = emitXml . mode
+parseMode :: String -> P.XParse Mode
+parseMode = return . fromString
+
+-- | @non-negative-decimal@ /(simple)/
+--
+-- The non-negative-decimal type specifies a non-negative decimal value.
+newtype NonNegativeDecimal = NonNegativeDecimal { nonNegativeDecimal :: Decimal }
+    deriving (Eq,Typeable,Generic,Ord,Num,Real,Fractional,RealFrac)
+instance Show NonNegativeDecimal where show (NonNegativeDecimal a) = show a
+instance Read NonNegativeDecimal where readsPrec i = map (A.first NonNegativeDecimal) . readsPrec i
+instance EmitXml NonNegativeDecimal where
+    emitXml = emitXml . nonNegativeDecimal
+parseNonNegativeDecimal :: String -> P.XParse NonNegativeDecimal
+parseNonNegativeDecimal = P.xread "NonNegativeDecimal"
+
+-- | @xs:nonNegativeInteger@ /(simple)/
+newtype NonNegativeInteger = NonNegativeInteger { nonNegativeInteger :: Int }
+    deriving (Eq,Typeable,Generic,Ord,Bounded,Enum,Num,Real,Integral)
+instance Show NonNegativeInteger where show (NonNegativeInteger a) = show a
+instance Read NonNegativeInteger where readsPrec i = map (A.first NonNegativeInteger) . readsPrec i
+instance EmitXml NonNegativeInteger where
+    emitXml = emitXml . nonNegativeInteger
+parseNonNegativeInteger :: String -> P.XParse NonNegativeInteger
+parseNonNegativeInteger = P.xread "NonNegativeInteger"
+
+-- | @xs:normalizedString@ /(simple)/
+newtype NormalizedString = NormalizedString { normalizedString :: String }
+    deriving (Eq,Typeable,Generic,Ord,IsString)
+instance Show NormalizedString where show (NormalizedString a) = show a
+instance Read NormalizedString where readsPrec i = map (A.first NormalizedString) . readsPrec i
+instance EmitXml NormalizedString where
+    emitXml = emitXml . normalizedString
+parseNormalizedString :: String -> P.XParse NormalizedString
+parseNormalizedString = return . fromString
+
+-- | @note-size-type@ /(simple)/
+--
+-- The note-size-type type indicates the type of note being defined by a note-size element. The grace type is used for notes of cue size that that include a grace element. The cue type is used for all other notes with cue size, whether defined explicitly or implicitly via a cue element. The large type is used for notes of large size.
+data NoteSizeType = 
+      NoteSizeTypeCue -- ^ /cue/
+    | NoteSizeTypeGrace -- ^ /grace/
+    | NoteSizeTypeLarge -- ^ /large/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml NoteSizeType where
+    emitXml NoteSizeTypeCue = XLit "cue"
+    emitXml NoteSizeTypeGrace = XLit "grace"
+    emitXml NoteSizeTypeLarge = XLit "large"
+parseNoteSizeType :: String -> P.XParse NoteSizeType
+parseNoteSizeType s
+        | s == "cue" = return $ NoteSizeTypeCue
+        | s == "grace" = return $ NoteSizeTypeGrace
+        | s == "large" = return $ NoteSizeTypeLarge
+        | otherwise = P.xfail $ "NoteSizeType: " ++ s
+
+-- | @note-type-value@ /(simple)/
+--
+-- The note-type type is used for the MusicXML type element and represents the graphic note type, from 256th (shortest) to long (longest).
+data NoteTypeValue = 
+      NoteTypeValue256th -- ^ /256th/
+    | NoteTypeValue128th -- ^ /128th/
+    | NoteTypeValue64th -- ^ /64th/
+    | NoteTypeValue32nd -- ^ /32nd/
+    | NoteTypeValue16th -- ^ /16th/
+    | NoteTypeValueEighth -- ^ /eighth/
+    | NoteTypeValueQuarter -- ^ /quarter/
+    | NoteTypeValueHalf -- ^ /half/
+    | NoteTypeValueWhole -- ^ /whole/
+    | NoteTypeValueBreve -- ^ /breve/
+    | NoteTypeValueLong -- ^ /long/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml NoteTypeValue where
+    emitXml NoteTypeValue256th = XLit "256th"
+    emitXml NoteTypeValue128th = XLit "128th"
+    emitXml NoteTypeValue64th = XLit "64th"
+    emitXml NoteTypeValue32nd = XLit "32nd"
+    emitXml NoteTypeValue16th = XLit "16th"
+    emitXml NoteTypeValueEighth = XLit "eighth"
+    emitXml NoteTypeValueQuarter = XLit "quarter"
+    emitXml NoteTypeValueHalf = XLit "half"
+    emitXml NoteTypeValueWhole = XLit "whole"
+    emitXml NoteTypeValueBreve = XLit "breve"
+    emitXml NoteTypeValueLong = XLit "long"
+parseNoteTypeValue :: String -> P.XParse NoteTypeValue
+parseNoteTypeValue s
+        | s == "256th" = return $ NoteTypeValue256th
+        | s == "128th" = return $ NoteTypeValue128th
+        | s == "64th" = return $ NoteTypeValue64th
+        | s == "32nd" = return $ NoteTypeValue32nd
+        | s == "16th" = return $ NoteTypeValue16th
+        | s == "eighth" = return $ NoteTypeValueEighth
+        | s == "quarter" = return $ NoteTypeValueQuarter
+        | s == "half" = return $ NoteTypeValueHalf
+        | s == "whole" = return $ NoteTypeValueWhole
+        | s == "breve" = return $ NoteTypeValueBreve
+        | s == "long" = return $ NoteTypeValueLong
+        | otherwise = P.xfail $ "NoteTypeValue: " ++ s
+
+-- | @notehead-value@ /(simple)/
+--
+-- 
+-- The notehead type indicates shapes other than the open and closed ovals associated with note durations. The values do, re, mi, fa, so, la, and ti correspond to Aikin's 7-shape system.
+-- 
+-- The arrow shapes differ from triangle and inverted triangle by being centered on the stem. Slashed and back slashed notes include both the normal notehead and a slash. The triangle shape has the tip of the triangle pointing up; the inverted triangle shape has the tip of the triangle pointing down.
+data NoteheadValue = 
+      NoteheadValueSlash -- ^ /slash/
+    | NoteheadValueTriangle -- ^ /triangle/
+    | NoteheadValueDiamond -- ^ /diamond/
+    | NoteheadValueSquare -- ^ /square/
+    | NoteheadValueCross -- ^ /cross/
+    | NoteheadValueX -- ^ /x/
+    | NoteheadValueCircleX -- ^ /circle-x/
+    | NoteheadValueInvertedTriangle -- ^ /inverted triangle/
+    | NoteheadValueArrowDown -- ^ /arrow down/
+    | NoteheadValueArrowUp -- ^ /arrow up/
+    | NoteheadValueSlashed -- ^ /slashed/
+    | NoteheadValueBackSlashed -- ^ /back slashed/
+    | NoteheadValueNormal -- ^ /normal/
+    | NoteheadValueCluster -- ^ /cluster/
+    | NoteheadValueNone -- ^ /none/
+    | NoteheadValueDo -- ^ /do/
+    | NoteheadValueRe -- ^ /re/
+    | NoteheadValueMi -- ^ /mi/
+    | NoteheadValueFa -- ^ /fa/
+    | NoteheadValueSo -- ^ /so/
+    | NoteheadValueLa -- ^ /la/
+    | NoteheadValueTi -- ^ /ti/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml NoteheadValue where
+    emitXml NoteheadValueSlash = XLit "slash"
+    emitXml NoteheadValueTriangle = XLit "triangle"
+    emitXml NoteheadValueDiamond = XLit "diamond"
+    emitXml NoteheadValueSquare = XLit "square"
+    emitXml NoteheadValueCross = XLit "cross"
+    emitXml NoteheadValueX = XLit "x"
+    emitXml NoteheadValueCircleX = XLit "circle-x"
+    emitXml NoteheadValueInvertedTriangle = XLit "inverted triangle"
+    emitXml NoteheadValueArrowDown = XLit "arrow down"
+    emitXml NoteheadValueArrowUp = XLit "arrow up"
+    emitXml NoteheadValueSlashed = XLit "slashed"
+    emitXml NoteheadValueBackSlashed = XLit "back slashed"
+    emitXml NoteheadValueNormal = XLit "normal"
+    emitXml NoteheadValueCluster = XLit "cluster"
+    emitXml NoteheadValueNone = XLit "none"
+    emitXml NoteheadValueDo = XLit "do"
+    emitXml NoteheadValueRe = XLit "re"
+    emitXml NoteheadValueMi = XLit "mi"
+    emitXml NoteheadValueFa = XLit "fa"
+    emitXml NoteheadValueSo = XLit "so"
+    emitXml NoteheadValueLa = XLit "la"
+    emitXml NoteheadValueTi = XLit "ti"
+parseNoteheadValue :: String -> P.XParse NoteheadValue
+parseNoteheadValue s
+        | s == "slash" = return $ NoteheadValueSlash
+        | s == "triangle" = return $ NoteheadValueTriangle
+        | s == "diamond" = return $ NoteheadValueDiamond
+        | s == "square" = return $ NoteheadValueSquare
+        | s == "cross" = return $ NoteheadValueCross
+        | s == "x" = return $ NoteheadValueX
+        | s == "circle-x" = return $ NoteheadValueCircleX
+        | s == "inverted triangle" = return $ NoteheadValueInvertedTriangle
+        | s == "arrow down" = return $ NoteheadValueArrowDown
+        | s == "arrow up" = return $ NoteheadValueArrowUp
+        | s == "slashed" = return $ NoteheadValueSlashed
+        | s == "back slashed" = return $ NoteheadValueBackSlashed
+        | s == "normal" = return $ NoteheadValueNormal
+        | s == "cluster" = return $ NoteheadValueCluster
+        | s == "none" = return $ NoteheadValueNone
+        | s == "do" = return $ NoteheadValueDo
+        | s == "re" = return $ NoteheadValueRe
+        | s == "mi" = return $ NoteheadValueMi
+        | s == "fa" = return $ NoteheadValueFa
+        | s == "so" = return $ NoteheadValueSo
+        | s == "la" = return $ NoteheadValueLa
+        | s == "ti" = return $ NoteheadValueTi
+        | otherwise = P.xfail $ "NoteheadValue: " ++ s
+
+-- | @number-level@ /(simple)/
+--
+-- Slurs, tuplets, and many other features can be concurrent and overlapping within a single musical part. The number-level type distinguishes up to six concurrent objects of the same type. A reading program should be prepared to handle cases where the number-levels stop in an arbitrary order. Different numbers are needed when the features overlap in MusicXML file order. When a number-level value is implied, the value is 1 by default.
+newtype NumberLevel = NumberLevel { numberLevel :: PositiveInteger }
+    deriving (Eq,Typeable,Generic,Ord,Bounded,Enum,Num,Real,Integral)
+instance Show NumberLevel where show (NumberLevel a) = show a
+instance Read NumberLevel where readsPrec i = map (A.first NumberLevel) . readsPrec i
+instance EmitXml NumberLevel where
+    emitXml = emitXml . numberLevel
+parseNumberLevel :: String -> P.XParse NumberLevel
+parseNumberLevel = P.xread "NumberLevel"
+
+-- | @number-of-lines@ /(simple)/
+--
+-- The number-of-lines type is used to specify the number of lines in text decoration attributes.
+newtype NumberOfLines = NumberOfLines { numberOfLines :: NonNegativeInteger }
+    deriving (Eq,Typeable,Generic,Ord,Bounded,Enum,Num,Real,Integral)
+instance Show NumberOfLines where show (NumberOfLines a) = show a
+instance Read NumberOfLines where readsPrec i = map (A.first NumberOfLines) . readsPrec i
+instance EmitXml NumberOfLines where
+    emitXml = emitXml . numberOfLines
+parseNumberOfLines :: String -> P.XParse NumberOfLines
+parseNumberOfLines = P.xread "NumberOfLines"
+
+-- | @number-or-normal@ /(simple)/
+--
+-- The number-or-normal values can be either a decimal number or the string "normal". This is used by the line-height and letter-spacing attributes.
+data NumberOrNormal = 
+      NumberOrNormalDecimal {
+          numberOrNormal1 :: Decimal
+       }
+    | NumberOrNormalNumberOrNormal {
+          numberOrNormal2 :: SumNumberOrNormal
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml NumberOrNormal where
+    emitXml (NumberOrNormalDecimal a) = emitXml a
+    emitXml (NumberOrNormalNumberOrNormal a) = emitXml a
+parseNumberOrNormal :: String -> P.XParse NumberOrNormal
+parseNumberOrNormal s = 
+      NumberOrNormalDecimal
+        <$> (P.xread "Decimal") s
+      <|> NumberOrNormalNumberOrNormal
+        <$> parseSumNumberOrNormal s
+
+
+-- | @octave@ /(simple)/
+--
+-- Octaves are represented by the numbers 0 to 9, where 4 indicates the octave started by middle C.
+newtype Octave = Octave { octave :: Int }
+    deriving (Eq,Typeable,Generic,Ord,Bounded,Enum,Num,Real,Integral)
+instance Show Octave where show (Octave a) = show a
+instance Read Octave where readsPrec i = map (A.first Octave) . readsPrec i
+instance EmitXml Octave where
+    emitXml = emitXml . octave
+parseOctave :: String -> P.XParse Octave
+parseOctave = P.xread "Octave"
+
+-- | @over-under@ /(simple)/
+--
+-- The over-under type is used to indicate whether the tips of curved lines such as slurs and ties are overhand (tips down) or underhand (tips up).
+data OverUnder = 
+      OverUnderOver -- ^ /over/
+    | OverUnderUnder -- ^ /under/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml OverUnder where
+    emitXml OverUnderOver = XLit "over"
+    emitXml OverUnderUnder = XLit "under"
+parseOverUnder :: String -> P.XParse OverUnder
+parseOverUnder s
+        | s == "over" = return $ OverUnderOver
+        | s == "under" = return $ OverUnderUnder
+        | otherwise = P.xfail $ "OverUnder: " ++ s
+
+-- | @percent@ /(simple)/
+--
+-- The percent type specifies a percentage from 0 to 100.
+newtype Percent = Percent { percent :: Decimal }
+    deriving (Eq,Typeable,Generic,Ord,Num,Real,Fractional,RealFrac)
+instance Show Percent where show (Percent a) = show a
+instance Read Percent where readsPrec i = map (A.first Percent) . readsPrec i
+instance EmitXml Percent where
+    emitXml = emitXml . percent
+parsePercent :: String -> P.XParse Percent
+parsePercent = P.xread "Percent"
+
+-- | @positive-divisions@ /(simple)/
+--
+-- The positive-divisions type restricts divisions values to positive numbers.
+newtype PositiveDivisions = PositiveDivisions { positiveDivisions :: Divisions }
+    deriving (Eq,Typeable,Generic,Ord,Num,Real,Fractional,RealFrac)
+instance Show PositiveDivisions where show (PositiveDivisions a) = show a
+instance Read PositiveDivisions where readsPrec i = map (A.first PositiveDivisions) . readsPrec i
+instance EmitXml PositiveDivisions where
+    emitXml = emitXml . positiveDivisions
+parsePositiveDivisions :: String -> P.XParse PositiveDivisions
+parsePositiveDivisions = P.xread "PositiveDivisions"
+
+-- | @positive-integer-or-empty@ /(simple)/
+--
+-- The positive-integer-or-empty values can be either a positive integer or an empty string.
+data PositiveIntegerOrEmpty = 
+      PositiveIntegerOrEmptyPositiveInteger {
+          positiveIntegerOrEmpty1 :: PositiveInteger
+       }
+    | PositiveIntegerOrEmptyPositiveIntegerOrEmpty {
+          positiveIntegerOrEmpty2 :: SumPositiveIntegerOrEmpty
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml PositiveIntegerOrEmpty where
+    emitXml (PositiveIntegerOrEmptyPositiveInteger a) = emitXml a
+    emitXml (PositiveIntegerOrEmptyPositiveIntegerOrEmpty a) = emitXml a
+parsePositiveIntegerOrEmpty :: String -> P.XParse PositiveIntegerOrEmpty
+parsePositiveIntegerOrEmpty s = 
+      PositiveIntegerOrEmptyPositiveInteger
+        <$> parsePositiveInteger s
+      <|> PositiveIntegerOrEmptyPositiveIntegerOrEmpty
+        <$> parseSumPositiveIntegerOrEmpty s
+
+
+-- | @xs:positiveInteger@ /(simple)/
+newtype PositiveInteger = PositiveInteger { positiveInteger :: NonNegativeInteger }
+    deriving (Eq,Typeable,Generic,Ord,Bounded,Enum,Num,Real,Integral)
+instance Show PositiveInteger where show (PositiveInteger a) = show a
+instance Read PositiveInteger where readsPrec i = map (A.first PositiveInteger) . readsPrec i
+instance EmitXml PositiveInteger where
+    emitXml = emitXml . positiveInteger
+parsePositiveInteger :: String -> P.XParse PositiveInteger
+parsePositiveInteger = P.xread "PositiveInteger"
+
+-- | @rehearsal-enclosure@ /(simple)/
+--
+-- The rehearsal-enclosure type describes the shape and presence / absence of an enclosure around rehearsal text.
+data RehearsalEnclosure = 
+      RehearsalEnclosureSquare -- ^ /square/
+    | RehearsalEnclosureCircle -- ^ /circle/
+    | RehearsalEnclosureNone -- ^ /none/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml RehearsalEnclosure where
+    emitXml RehearsalEnclosureSquare = XLit "square"
+    emitXml RehearsalEnclosureCircle = XLit "circle"
+    emitXml RehearsalEnclosureNone = XLit "none"
+parseRehearsalEnclosure :: String -> P.XParse RehearsalEnclosure
+parseRehearsalEnclosure s
+        | s == "square" = return $ RehearsalEnclosureSquare
+        | s == "circle" = return $ RehearsalEnclosureCircle
+        | s == "none" = return $ RehearsalEnclosureNone
+        | otherwise = P.xfail $ "RehearsalEnclosure: " ++ s
+
+-- | @right-left-middle@ /(simple)/
+--
+-- The right-left-middle type is used to specify barline location.
+data RightLeftMiddle = 
+      RightLeftMiddleRight -- ^ /right/
+    | RightLeftMiddleLeft -- ^ /left/
+    | RightLeftMiddleMiddle -- ^ /middle/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml RightLeftMiddle where
+    emitXml RightLeftMiddleRight = XLit "right"
+    emitXml RightLeftMiddleLeft = XLit "left"
+    emitXml RightLeftMiddleMiddle = XLit "middle"
+parseRightLeftMiddle :: String -> P.XParse RightLeftMiddle
+parseRightLeftMiddle s
+        | s == "right" = return $ RightLeftMiddleRight
+        | s == "left" = return $ RightLeftMiddleLeft
+        | s == "middle" = return $ RightLeftMiddleMiddle
+        | otherwise = P.xfail $ "RightLeftMiddle: " ++ s
+
+-- | @rotation-degrees@ /(simple)/
+--
+-- The rotation-degrees type specifies rotation, pan, and elevation values in degrees. Values range from -180 to 180.
+newtype RotationDegrees = RotationDegrees { rotationDegrees :: Decimal }
+    deriving (Eq,Typeable,Generic,Ord,Num,Real,Fractional,RealFrac)
+instance Show RotationDegrees where show (RotationDegrees a) = show a
+instance Read RotationDegrees where readsPrec i = map (A.first RotationDegrees) . readsPrec i
+instance EmitXml RotationDegrees where
+    emitXml = emitXml . rotationDegrees
+parseRotationDegrees :: String -> P.XParse RotationDegrees
+parseRotationDegrees = P.xread "RotationDegrees"
+
+-- | @semitones@ /(simple)/
+--
+-- The semintones type is a number representing semitones, used for chromatic alteration. A value of -1 corresponds to a flat and a value of 1 to a sharp. Decimal values like 0.5 (quarter tone sharp) may be used for microtones.
+newtype Semitones = Semitones { semitones :: Decimal }
+    deriving (Eq,Typeable,Generic,Ord,Num,Real,Fractional,RealFrac)
+instance Show Semitones where show (Semitones a) = show a
+instance Read Semitones where readsPrec i = map (A.first Semitones) . readsPrec i
+instance EmitXml Semitones where
+    emitXml = emitXml . semitones
+parseSemitones :: String -> P.XParse Semitones
+parseSemitones = P.xread "Semitones"
+
+-- | @xlink:show@ /(simple)/
+data SmpShow = 
+      ShowNew -- ^ /new/
+    | ShowReplace -- ^ /replace/
+    | ShowEmbed -- ^ /embed/
+    | ShowOther -- ^ /other/
+    | ShowNone -- ^ /none/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml SmpShow where
+    emitXml ShowNew = XLit "new"
+    emitXml ShowReplace = XLit "replace"
+    emitXml ShowEmbed = XLit "embed"
+    emitXml ShowOther = XLit "other"
+    emitXml ShowNone = XLit "none"
+parseSmpShow :: String -> P.XParse SmpShow
+parseSmpShow s
+        | s == "new" = return $ ShowNew
+        | s == "replace" = return $ ShowReplace
+        | s == "embed" = return $ ShowEmbed
+        | s == "other" = return $ ShowOther
+        | s == "none" = return $ ShowNone
+        | otherwise = P.xfail $ "SmpShow: " ++ s
+
+-- | @show-frets@ /(simple)/
+--
+-- The show-frets type indicates whether to show tablature frets as numbers (0, 1, 2) or letters (a, b, c). The default choice is numbers.
+data ShowFrets = 
+      ShowFretsNumbers -- ^ /numbers/
+    | ShowFretsLetters -- ^ /letters/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml ShowFrets where
+    emitXml ShowFretsNumbers = XLit "numbers"
+    emitXml ShowFretsLetters = XLit "letters"
+parseShowFrets :: String -> P.XParse ShowFrets
+parseShowFrets s
+        | s == "numbers" = return $ ShowFretsNumbers
+        | s == "letters" = return $ ShowFretsLetters
+        | otherwise = P.xfail $ "ShowFrets: " ++ s
+
+-- | @show-tuplet@ /(simple)/
+--
+-- The show-tuplet type indicates whether to show a part of a tuplet relating to the tuplet-actual element, both the tuplet-actual and tuplet-normal elements, or neither.
+data ShowTuplet = 
+      ShowTupletActual -- ^ /actual/
+    | ShowTupletBoth -- ^ /both/
+    | ShowTupletNone -- ^ /none/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml ShowTuplet where
+    emitXml ShowTupletActual = XLit "actual"
+    emitXml ShowTupletBoth = XLit "both"
+    emitXml ShowTupletNone = XLit "none"
+parseShowTuplet :: String -> P.XParse ShowTuplet
+parseShowTuplet s
+        | s == "actual" = return $ ShowTupletActual
+        | s == "both" = return $ ShowTupletBoth
+        | s == "none" = return $ ShowTupletNone
+        | otherwise = P.xfail $ "ShowTuplet: " ++ s
+
+-- | @staff-line@ /(simple)/
+--
+-- The staff-line type indicates the line on a given staff. Staff lines are numbered from bottom to top, with 1 being the bottom line on a staff. Staff line values can be used to specify positions outside the staff, such as a C clef positioned in the middle of a grand staff.
+newtype StaffLine = StaffLine { staffLine :: Int }
+    deriving (Eq,Typeable,Generic,Ord,Bounded,Enum,Num,Real,Integral)
+instance Show StaffLine where show (StaffLine a) = show a
+instance Read StaffLine where readsPrec i = map (A.first StaffLine) . readsPrec i
+instance EmitXml StaffLine where
+    emitXml = emitXml . staffLine
+parseStaffLine :: String -> P.XParse StaffLine
+parseStaffLine = P.xread "StaffLine"
+
+-- | @staff-number@ /(simple)/
+--
+-- The staff-number type indicates staff numbers within a multi-staff part. Staves are numbered from top to bottom, with 1 being the top staff on a part.
+newtype StaffNumber = StaffNumber { staffNumber :: PositiveInteger }
+    deriving (Eq,Typeable,Generic,Ord,Bounded,Enum,Num,Real,Integral)
+instance Show StaffNumber where show (StaffNumber a) = show a
+instance Read StaffNumber where readsPrec i = map (A.first StaffNumber) . readsPrec i
+instance EmitXml StaffNumber where
+    emitXml = emitXml . staffNumber
+parseStaffNumber :: String -> P.XParse StaffNumber
+parseStaffNumber = P.xread "StaffNumber"
+
+-- | @staff-type@ /(simple)/
+--
+-- The staff-type value can be ossia, cue, editorial, regular, or alternate. An alternate staff indicates one that shares the same musical data as the prior staff, but displayed differently (e.g., treble and bass clef, standard notation and tab).
+data StaffType = 
+      StaffTypeOssia -- ^ /ossia/
+    | StaffTypeCue -- ^ /cue/
+    | StaffTypeEditorial -- ^ /editorial/
+    | StaffTypeRegular -- ^ /regular/
+    | StaffTypeAlternate -- ^ /alternate/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml StaffType where
+    emitXml StaffTypeOssia = XLit "ossia"
+    emitXml StaffTypeCue = XLit "cue"
+    emitXml StaffTypeEditorial = XLit "editorial"
+    emitXml StaffTypeRegular = XLit "regular"
+    emitXml StaffTypeAlternate = XLit "alternate"
+parseStaffType :: String -> P.XParse StaffType
+parseStaffType s
+        | s == "ossia" = return $ StaffTypeOssia
+        | s == "cue" = return $ StaffTypeCue
+        | s == "editorial" = return $ StaffTypeEditorial
+        | s == "regular" = return $ StaffTypeRegular
+        | s == "alternate" = return $ StaffTypeAlternate
+        | otherwise = P.xfail $ "StaffType: " ++ s
+
+-- | @start-note@ /(simple)/
+--
+-- The start-note type describes the starting note of trills and mordents for playback, relative to the current note.
+data StartNote = 
+      StartNoteUpper -- ^ /upper/
+    | StartNoteMain -- ^ /main/
+    | StartNoteBelow -- ^ /below/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml StartNote where
+    emitXml StartNoteUpper = XLit "upper"
+    emitXml StartNoteMain = XLit "main"
+    emitXml StartNoteBelow = XLit "below"
+parseStartNote :: String -> P.XParse StartNote
+parseStartNote s
+        | s == "upper" = return $ StartNoteUpper
+        | s == "main" = return $ StartNoteMain
+        | s == "below" = return $ StartNoteBelow
+        | otherwise = P.xfail $ "StartNote: " ++ s
+
+-- | @start-stop@ /(simple)/
+--
+-- The start-stop type is used for an attribute of musical elements that can either start or stop, such as tuplets, wedges, and lines.
+data StartStop = 
+      StartStopStart -- ^ /start/
+    | StartStopStop -- ^ /stop/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml StartStop where
+    emitXml StartStopStart = XLit "start"
+    emitXml StartStopStop = XLit "stop"
+parseStartStop :: String -> P.XParse StartStop
+parseStartStop s
+        | s == "start" = return $ StartStopStart
+        | s == "stop" = return $ StartStopStop
+        | otherwise = P.xfail $ "StartStop: " ++ s
+
+-- | @start-stop-change@ /(simple)/
+--
+-- The start-stop-change type is used to distinguish types of pedal directions.
+data StartStopChange = 
+      StartStopChangeStart -- ^ /start/
+    | StartStopChangeStop -- ^ /stop/
+    | StartStopChangeChange -- ^ /change/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml StartStopChange where
+    emitXml StartStopChangeStart = XLit "start"
+    emitXml StartStopChangeStop = XLit "stop"
+    emitXml StartStopChangeChange = XLit "change"
+parseStartStopChange :: String -> P.XParse StartStopChange
+parseStartStopChange s
+        | s == "start" = return $ StartStopChangeStart
+        | s == "stop" = return $ StartStopChangeStop
+        | s == "change" = return $ StartStopChangeChange
+        | otherwise = P.xfail $ "StartStopChange: " ++ s
+
+-- | @start-stop-continue@ /(simple)/
+--
+-- The start-stop-continue type is used for an attribute of musical elements that can either start or stop, but also need to refer to an intermediate point in the symbol, as for complex slurs.
+data StartStopContinue = 
+      StartStopContinueStart -- ^ /start/
+    | StartStopContinueStop -- ^ /stop/
+    | StartStopContinueContinue -- ^ /continue/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml StartStopContinue where
+    emitXml StartStopContinueStart = XLit "start"
+    emitXml StartStopContinueStop = XLit "stop"
+    emitXml StartStopContinueContinue = XLit "continue"
+parseStartStopContinue :: String -> P.XParse StartStopContinue
+parseStartStopContinue s
+        | s == "start" = return $ StartStopContinueStart
+        | s == "stop" = return $ StartStopContinueStop
+        | s == "continue" = return $ StartStopContinueContinue
+        | otherwise = P.xfail $ "StartStopContinue: " ++ s
+
+-- | @start-stop-discontinue@ /(simple)/
+--
+-- The start-stop-discontinue type is used to specify ending types. Typically, the start type is associated with the left barline of the first measure in an ending. The stop and discontinue types are associated with the right barline of the last measure in an ending. Stop is used when the ending mark concludes with a downward jog, as is typical for first endings. Discontinue is used when there is no downward jog, as is typical for second endings that do not conclude a piece.
+data StartStopDiscontinue = 
+      StartStopDiscontinueStart -- ^ /start/
+    | StartStopDiscontinueStop -- ^ /stop/
+    | StartStopDiscontinueDiscontinue -- ^ /discontinue/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml StartStopDiscontinue where
+    emitXml StartStopDiscontinueStart = XLit "start"
+    emitXml StartStopDiscontinueStop = XLit "stop"
+    emitXml StartStopDiscontinueDiscontinue = XLit "discontinue"
+parseStartStopDiscontinue :: String -> P.XParse StartStopDiscontinue
+parseStartStopDiscontinue s
+        | s == "start" = return $ StartStopDiscontinueStart
+        | s == "stop" = return $ StartStopDiscontinueStop
+        | s == "discontinue" = return $ StartStopDiscontinueDiscontinue
+        | otherwise = P.xfail $ "StartStopDiscontinue: " ++ s
+
+-- | @start-stop-single@ /(simple)/
+--
+-- The start-stop-single type is used for an attribute of musical elements that can be used for either multi-note or single-note musical elements, as for tremolos.
+data StartStopSingle = 
+      StartStopSingleStart -- ^ /start/
+    | StartStopSingleStop -- ^ /stop/
+    | StartStopSingleSingle -- ^ /single/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml StartStopSingle where
+    emitXml StartStopSingleStart = XLit "start"
+    emitXml StartStopSingleStop = XLit "stop"
+    emitXml StartStopSingleSingle = XLit "single"
+parseStartStopSingle :: String -> P.XParse StartStopSingle
+parseStartStopSingle s
+        | s == "start" = return $ StartStopSingleStart
+        | s == "stop" = return $ StartStopSingleStop
+        | s == "single" = return $ StartStopSingleSingle
+        | otherwise = P.xfail $ "StartStopSingle: " ++ s
+
+-- | @stem-value@ /(simple)/
+--
+-- The stem type represents the notated stem direction.
+data StemValue = 
+      StemValueDown -- ^ /down/
+    | StemValueUp -- ^ /up/
+    | StemValueDouble -- ^ /double/
+    | StemValueNone -- ^ /none/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml StemValue where
+    emitXml StemValueDown = XLit "down"
+    emitXml StemValueUp = XLit "up"
+    emitXml StemValueDouble = XLit "double"
+    emitXml StemValueNone = XLit "none"
+parseStemValue :: String -> P.XParse StemValue
+parseStemValue s
+        | s == "down" = return $ StemValueDown
+        | s == "up" = return $ StemValueUp
+        | s == "double" = return $ StemValueDouble
+        | s == "none" = return $ StemValueNone
+        | otherwise = P.xfail $ "StemValue: " ++ s
+
+-- | @step@ /(simple)/
+--
+-- The step type represents a step of the diatonic scale, represented using the English letters A through G.
+data Step = 
+      StepA -- ^ /A/
+    | StepB -- ^ /B/
+    | StepC -- ^ /C/
+    | StepD -- ^ /D/
+    | StepE -- ^ /E/
+    | StepF -- ^ /F/
+    | StepG -- ^ /G/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml Step where
+    emitXml StepA = XLit "A"
+    emitXml StepB = XLit "B"
+    emitXml StepC = XLit "C"
+    emitXml StepD = XLit "D"
+    emitXml StepE = XLit "E"
+    emitXml StepF = XLit "F"
+    emitXml StepG = XLit "G"
+parseStep :: String -> P.XParse Step
+parseStep s
+        | s == "A" = return $ StepA
+        | s == "B" = return $ StepB
+        | s == "C" = return $ StepC
+        | s == "D" = return $ StepD
+        | s == "E" = return $ StepE
+        | s == "F" = return $ StepF
+        | s == "G" = return $ StepG
+        | otherwise = P.xfail $ "Step: " ++ s
+
+-- | @string-number@ /(simple)/
+--
+-- The string-number type indicates a string number. Strings are numbered from high to low, with 1 being the highest pitched string.
+newtype StringNumber = StringNumber { stringNumber :: PositiveInteger }
+    deriving (Eq,Typeable,Generic,Ord,Bounded,Enum,Num,Real,Integral)
+instance Show StringNumber where show (StringNumber a) = show a
+instance Read StringNumber where readsPrec i = map (A.first StringNumber) . readsPrec i
+instance EmitXml StringNumber where
+    emitXml = emitXml . stringNumber
+parseStringNumber :: String -> P.XParse StringNumber
+parseStringNumber = P.xread "StringNumber"
+
+-- | @syllabic@ /(simple)/
+--
+-- Lyric hyphenation is indicated by the syllabic type. The single, begin, end, and middle values represent single-syllable words, word-beginning syllables, word-ending syllables, and mid-word syllables, respectively.
+data Syllabic = 
+      SyllabicSingle -- ^ /single/
+    | SyllabicBegin -- ^ /begin/
+    | SyllabicEnd -- ^ /end/
+    | SyllabicMiddle -- ^ /middle/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml Syllabic where
+    emitXml SyllabicSingle = XLit "single"
+    emitXml SyllabicBegin = XLit "begin"
+    emitXml SyllabicEnd = XLit "end"
+    emitXml SyllabicMiddle = XLit "middle"
+parseSyllabic :: String -> P.XParse Syllabic
+parseSyllabic s
+        | s == "single" = return $ SyllabicSingle
+        | s == "begin" = return $ SyllabicBegin
+        | s == "end" = return $ SyllabicEnd
+        | s == "middle" = return $ SyllabicMiddle
+        | otherwise = P.xfail $ "Syllabic: " ++ s
+
+-- | @symbol-size@ /(simple)/
+--
+-- The symbol-size type is used to indicate full vs. cue-sized vs. oversized symbols. The large value for oversized symbols was added in version 1.1.
+data SymbolSize = 
+      SymbolSizeFull -- ^ /full/
+    | SymbolSizeCue -- ^ /cue/
+    | SymbolSizeLarge -- ^ /large/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml SymbolSize where
+    emitXml SymbolSizeFull = XLit "full"
+    emitXml SymbolSizeCue = XLit "cue"
+    emitXml SymbolSizeLarge = XLit "large"
+parseSymbolSize :: String -> P.XParse SymbolSize
+parseSymbolSize s
+        | s == "full" = return $ SymbolSizeFull
+        | s == "cue" = return $ SymbolSizeCue
+        | s == "large" = return $ SymbolSizeLarge
+        | otherwise = P.xfail $ "SymbolSize: " ++ s
+
+-- | @tenths@ /(simple)/
+--
+-- The tenths type is a number representing tenths of interline staff space (positive or negative). Both integer and decimal values are allowed, such as 5 for a half space and 2.5 for a quarter space. Interline space is measured from the middle of a staff line.
+-- 
+-- Distances in a MusicXML file are measured in tenths of staff space. Tenths are then scaled to millimeters within the scaling element, used in the defaults element at the start of a score. Individual staves can apply a scaling factor to adjust staff size. When a MusicXML element or attribute refers to tenths, it means the global tenths defined by the scaling element, not the local tenths as adjusted by the staff-size element.
+newtype Tenths = Tenths { tenths :: Decimal }
+    deriving (Eq,Typeable,Generic,Ord,Num,Real,Fractional,RealFrac)
+instance Show Tenths where show (Tenths a) = show a
+instance Read Tenths where readsPrec i = map (A.first Tenths) . readsPrec i
+instance EmitXml Tenths where
+    emitXml = emitXml . tenths
+parseTenths :: String -> P.XParse Tenths
+parseTenths = P.xread "Tenths"
+
+-- | @text-direction@ /(simple)/
+--
+-- The text-direction type is used to adjust and override the Unicode bidirectional text algorithm, similar to the W3C Internationalization Tag Set recommendation. Values are ltr (left-to-right embed), rtl (right-to-left embed), lro (left-to-right bidi-override), and rlo (right-to-left bidi-override). The default value is ltr. This type is typically used by applications that store text in left-to-right visual order rather than logical order. Such applications can use the lro value to better communicate with other applications that more fully support bidirectional text.
+data TextDirection = 
+      TextDirectionLtr -- ^ /ltr/
+    | TextDirectionRtl -- ^ /rtl/
+    | TextDirectionLro -- ^ /lro/
+    | TextDirectionRlo -- ^ /rlo/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml TextDirection where
+    emitXml TextDirectionLtr = XLit "ltr"
+    emitXml TextDirectionRtl = XLit "rtl"
+    emitXml TextDirectionLro = XLit "lro"
+    emitXml TextDirectionRlo = XLit "rlo"
+parseTextDirection :: String -> P.XParse TextDirection
+parseTextDirection s
+        | s == "ltr" = return $ TextDirectionLtr
+        | s == "rtl" = return $ TextDirectionRtl
+        | s == "lro" = return $ TextDirectionLro
+        | s == "rlo" = return $ TextDirectionRlo
+        | otherwise = P.xfail $ "TextDirection: " ++ s
+
+-- | @time-symbol@ /(simple)/
+--
+-- The time-symbol type indicates how to display a time signature. The normal value is the usual fractional display, and is the implied symbol type if none is specified. Other options are the common and cut time symbols, as well as a single number with an implied denominator.
+data TimeSymbol = 
+      TimeSymbolCommon -- ^ /common/
+    | TimeSymbolCut -- ^ /cut/
+    | TimeSymbolSingleNumber -- ^ /single-number/
+    | TimeSymbolNormal -- ^ /normal/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml TimeSymbol where
+    emitXml TimeSymbolCommon = XLit "common"
+    emitXml TimeSymbolCut = XLit "cut"
+    emitXml TimeSymbolSingleNumber = XLit "single-number"
+    emitXml TimeSymbolNormal = XLit "normal"
+parseTimeSymbol :: String -> P.XParse TimeSymbol
+parseTimeSymbol s
+        | s == "common" = return $ TimeSymbolCommon
+        | s == "cut" = return $ TimeSymbolCut
+        | s == "single-number" = return $ TimeSymbolSingleNumber
+        | s == "normal" = return $ TimeSymbolNormal
+        | otherwise = P.xfail $ "TimeSymbol: " ++ s
+
+-- | @xs:token@ /(simple)/
+newtype Token = Token { token :: NormalizedString }
+    deriving (Eq,Typeable,Generic,Ord,IsString)
+instance Show Token where show (Token a) = show a
+instance Read Token where readsPrec i = map (A.first Token) . readsPrec i
+instance EmitXml Token where
+    emitXml = emitXml . token
+parseToken :: String -> P.XParse Token
+parseToken = return . fromString
+
+-- | @top-bottom@ /(simple)/
+--
+-- The top-bottom type is used to indicate the top or bottom part of a vertical shape like non-arpeggiate.
+data TopBottom = 
+      TopBottomTop -- ^ /top/
+    | TopBottomBottom -- ^ /bottom/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml TopBottom where
+    emitXml TopBottomTop = XLit "top"
+    emitXml TopBottomBottom = XLit "bottom"
+parseTopBottom :: String -> P.XParse TopBottom
+parseTopBottom s
+        | s == "top" = return $ TopBottomTop
+        | s == "bottom" = return $ TopBottomBottom
+        | otherwise = P.xfail $ "TopBottom: " ++ s
+
+-- | @tremolo-marks@ /(simple)/
+--
+-- The number of tremolo marks is represented by a number from 0 to 6: the same as beam-level with 0 added.
+newtype TremoloMarks = TremoloMarks { tremoloMarks :: Int }
+    deriving (Eq,Typeable,Generic,Ord,Bounded,Enum,Num,Real,Integral)
+instance Show TremoloMarks where show (TremoloMarks a) = show a
+instance Read TremoloMarks where readsPrec i = map (A.first TremoloMarks) . readsPrec i
+instance EmitXml TremoloMarks where
+    emitXml = emitXml . tremoloMarks
+parseTremoloMarks :: String -> P.XParse TremoloMarks
+parseTremoloMarks = P.xread "TremoloMarks"
+
+-- | @trill-beats@ /(simple)/
+--
+-- The trill-beats type specifies the beats used in a trill-sound or bend-sound attribute group. It is a decimal value with a minimum value of 2.
+newtype TrillBeats = TrillBeats { trillBeats :: Decimal }
+    deriving (Eq,Typeable,Generic,Ord,Num,Real,Fractional,RealFrac)
+instance Show TrillBeats where show (TrillBeats a) = show a
+instance Read TrillBeats where readsPrec i = map (A.first TrillBeats) . readsPrec i
+instance EmitXml TrillBeats where
+    emitXml = emitXml . trillBeats
+parseTrillBeats :: String -> P.XParse TrillBeats
+parseTrillBeats = P.xread "TrillBeats"
+
+-- | @trill-step@ /(simple)/
+--
+-- The trill-step type describes the alternating note of trills and mordents for playback, relative to the current note.
+data TrillStep = 
+      TrillStepWhole -- ^ /whole/
+    | TrillStepHalf -- ^ /half/
+    | TrillStepUnison -- ^ /unison/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml TrillStep where
+    emitXml TrillStepWhole = XLit "whole"
+    emitXml TrillStepHalf = XLit "half"
+    emitXml TrillStepUnison = XLit "unison"
+parseTrillStep :: String -> P.XParse TrillStep
+parseTrillStep s
+        | s == "whole" = return $ TrillStepWhole
+        | s == "half" = return $ TrillStepHalf
+        | s == "unison" = return $ TrillStepUnison
+        | otherwise = P.xfail $ "TrillStep: " ++ s
+
+-- | @two-note-turn@ /(simple)/
+--
+-- The two-note-turn type describes the ending notes of trills and mordents for playback, relative to the current note.
+data TwoNoteTurn = 
+      TwoNoteTurnWhole -- ^ /whole/
+    | TwoNoteTurnHalf -- ^ /half/
+    | TwoNoteTurnNone -- ^ /none/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml TwoNoteTurn where
+    emitXml TwoNoteTurnWhole = XLit "whole"
+    emitXml TwoNoteTurnHalf = XLit "half"
+    emitXml TwoNoteTurnNone = XLit "none"
+parseTwoNoteTurn :: String -> P.XParse TwoNoteTurn
+parseTwoNoteTurn s
+        | s == "whole" = return $ TwoNoteTurnWhole
+        | s == "half" = return $ TwoNoteTurnHalf
+        | s == "none" = return $ TwoNoteTurnNone
+        | otherwise = P.xfail $ "TwoNoteTurn: " ++ s
+
+-- | @xlink:type@ /(simple)/
+data Type = 
+      TypeSimple -- ^ /simple/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml Type where
+    emitXml TypeSimple = XLit "simple"
+parseType :: String -> P.XParse Type
+parseType s
+        | s == "simple" = return $ TypeSimple
+        | otherwise = P.xfail $ "Type: " ++ s
+
+-- | @up-down@ /(simple)/
+--
+-- The up-down type is used for arrow direction, indicating which way the tip is pointing.
+data UpDown = 
+      UpDownUp -- ^ /up/
+    | UpDownDown -- ^ /down/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml UpDown where
+    emitXml UpDownUp = XLit "up"
+    emitXml UpDownDown = XLit "down"
+parseUpDown :: String -> P.XParse UpDown
+parseUpDown s
+        | s == "up" = return $ UpDownUp
+        | s == "down" = return $ UpDownDown
+        | otherwise = P.xfail $ "UpDown: " ++ s
+
+-- | @up-down-stop@ /(simple)/
+--
+-- The up-down-stop type is used for octave-shift elements, indicating the direction of the shift from their true pitched values because of printing difficulty.
+data UpDownStop = 
+      UpDownStopUp -- ^ /up/
+    | UpDownStopDown -- ^ /down/
+    | UpDownStopStop -- ^ /stop/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml UpDownStop where
+    emitXml UpDownStopUp = XLit "up"
+    emitXml UpDownStopDown = XLit "down"
+    emitXml UpDownStopStop = XLit "stop"
+parseUpDownStop :: String -> P.XParse UpDownStop
+parseUpDownStop s
+        | s == "up" = return $ UpDownStopUp
+        | s == "down" = return $ UpDownStopDown
+        | s == "stop" = return $ UpDownStopStop
+        | otherwise = P.xfail $ "UpDownStop: " ++ s
+
+-- | @upright-inverted@ /(simple)/
+--
+-- The upright-inverted type describes the appearance of a fermata element. The value is upright if not specified.
+data UprightInverted = 
+      UprightInvertedUpright -- ^ /upright/
+    | UprightInvertedInverted -- ^ /inverted/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml UprightInverted where
+    emitXml UprightInvertedUpright = XLit "upright"
+    emitXml UprightInvertedInverted = XLit "inverted"
+parseUprightInverted :: String -> P.XParse UprightInverted
+parseUprightInverted s
+        | s == "upright" = return $ UprightInvertedUpright
+        | s == "inverted" = return $ UprightInvertedInverted
+        | otherwise = P.xfail $ "UprightInverted: " ++ s
+
+-- | @valign@ /(simple)/
+--
+-- The valign type is used to indicate vertical alignment to the top, middle, bottom, or baseline of the text. Defaults are implementation-dependent.
+data Valign = 
+      ValignTop -- ^ /top/
+    | ValignMiddle -- ^ /middle/
+    | ValignBottom -- ^ /bottom/
+    | ValignBaseline -- ^ /baseline/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml Valign where
+    emitXml ValignTop = XLit "top"
+    emitXml ValignMiddle = XLit "middle"
+    emitXml ValignBottom = XLit "bottom"
+    emitXml ValignBaseline = XLit "baseline"
+parseValign :: String -> P.XParse Valign
+parseValign s
+        | s == "top" = return $ ValignTop
+        | s == "middle" = return $ ValignMiddle
+        | s == "bottom" = return $ ValignBottom
+        | s == "baseline" = return $ ValignBaseline
+        | otherwise = P.xfail $ "Valign: " ++ s
+
+-- | @valign-image@ /(simple)/
+--
+-- The valign-image type is used to indicate vertical alignment for images and graphics, so it does not include a baseline value. Defaults are implementation-dependent.
+data ValignImage = 
+      ValignImageTop -- ^ /top/
+    | ValignImageMiddle -- ^ /middle/
+    | ValignImageBottom -- ^ /bottom/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml ValignImage where
+    emitXml ValignImageTop = XLit "top"
+    emitXml ValignImageMiddle = XLit "middle"
+    emitXml ValignImageBottom = XLit "bottom"
+parseValignImage :: String -> P.XParse ValignImage
+parseValignImage s
+        | s == "top" = return $ ValignImageTop
+        | s == "middle" = return $ ValignImageMiddle
+        | s == "bottom" = return $ ValignImageBottom
+        | otherwise = P.xfail $ "ValignImage: " ++ s
+
+-- | @wedge-type@ /(simple)/
+--
+-- The wedge type is crescendo for the start of a wedge that is closed at the left side, diminuendo for the start of a wedge that is closed on the right side, and stop for the end of a wedge.
+data WedgeType = 
+      WedgeTypeCrescendo -- ^ /crescendo/
+    | WedgeTypeDiminuendo -- ^ /diminuendo/
+    | WedgeTypeStop -- ^ /stop/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml WedgeType where
+    emitXml WedgeTypeCrescendo = XLit "crescendo"
+    emitXml WedgeTypeDiminuendo = XLit "diminuendo"
+    emitXml WedgeTypeStop = XLit "stop"
+parseWedgeType :: String -> P.XParse WedgeType
+parseWedgeType s
+        | s == "crescendo" = return $ WedgeTypeCrescendo
+        | s == "diminuendo" = return $ WedgeTypeDiminuendo
+        | s == "stop" = return $ WedgeTypeStop
+        | otherwise = P.xfail $ "WedgeType: " ++ s
+
+-- | @yes-no@ /(simple)/
+--
+-- The yes-no type is used for boolean-like attributes. We cannot use W3C XML Schema booleans due to their restrictions on expression of boolean values.
+data YesNo = 
+      YesNoYes -- ^ /yes/
+    | YesNoNo -- ^ /no/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml YesNo where
+    emitXml YesNoYes = XLit "yes"
+    emitXml YesNoNo = XLit "no"
+parseYesNo :: String -> P.XParse YesNo
+parseYesNo s
+        | s == "yes" = return $ YesNoYes
+        | s == "no" = return $ YesNoNo
+        | otherwise = P.xfail $ "YesNo: " ++ s
+
+-- | @yes-no-number@ /(simple)/
+--
+-- The yes-no-number type is used for attributes that can be either boolean or numeric values.
+data YesNoNumber = 
+      YesNoNumberYesNo {
+          yesNoNumber1 :: YesNo
+       }
+    | YesNoNumberDecimal {
+          yesNoNumber2 :: Decimal
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml YesNoNumber where
+    emitXml (YesNoNumberYesNo a) = emitXml a
+    emitXml (YesNoNumberDecimal a) = emitXml a
+parseYesNoNumber :: String -> P.XParse YesNoNumber
+parseYesNoNumber s = 
+      YesNoNumberYesNo
+        <$> parseYesNo s
+      <|> YesNoNumberDecimal
+        <$> (P.xread "Decimal") s
+
+
+-- | @yyyy-mm-dd@ /(simple)/
+--
+-- Calendar dates are represented yyyy-mm-dd format, following ISO 8601. This is a W3C XML Schema date type, but without the optional timezone data.
+newtype YyyyMmDd = YyyyMmDd { yyyyMmDd :: String }
+    deriving (Eq,Typeable,Generic,Ord,IsString)
+instance Show YyyyMmDd where show (YyyyMmDd a) = show a
+instance Read YyyyMmDd where readsPrec i = map (A.first YyyyMmDd) . readsPrec i
+instance EmitXml YyyyMmDd where
+    emitXml = emitXml . yyyyMmDd
+parseYyyyMmDd :: String -> P.XParse YyyyMmDd
+parseYyyyMmDd = return . fromString
+
+-- | @xml:lang@ /(union)/
+data SumLang = 
+      SumLang -- ^ //
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml SumLang where
+    emitXml SumLang = XLit ""
+parseSumLang :: String -> P.XParse SumLang
+parseSumLang s
+        | s == "" = return $ SumLang
+        | otherwise = P.xfail $ "SumLang: " ++ s
+
+-- | @number-or-normal@ /(union)/
+data SumNumberOrNormal = 
+      NumberOrNormalNormal -- ^ /normal/
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml SumNumberOrNormal where
+    emitXml NumberOrNormalNormal = XLit "normal"
+parseSumNumberOrNormal :: String -> P.XParse SumNumberOrNormal
+parseSumNumberOrNormal s
+        | s == "normal" = return $ NumberOrNormalNormal
+        | otherwise = P.xfail $ "SumNumberOrNormal: " ++ s
+
+-- | @positive-integer-or-empty@ /(union)/
+data SumPositiveIntegerOrEmpty = 
+      SumPositiveIntegerOrEmpty -- ^ //
+    deriving (Eq,Typeable,Generic,Show,Ord,Enum,Bounded)
+instance EmitXml SumPositiveIntegerOrEmpty where
+    emitXml SumPositiveIntegerOrEmpty = XLit ""
+parseSumPositiveIntegerOrEmpty :: String -> P.XParse SumPositiveIntegerOrEmpty
+parseSumPositiveIntegerOrEmpty s
+        | s == "" = return $ SumPositiveIntegerOrEmpty
+        | otherwise = P.xfail $ "SumPositiveIntegerOrEmpty: " ++ s
+
+-- | @accidental@ /(complex)/
+--
+-- The accidental type represents actual notated accidentals. Editorial and cautionary indications are indicated by attributes. Values for these attributes are "no" if not present. Specific graphic display such as parentheses, brackets, and size are controlled by the level-display attribute group.
+data Accidental = 
+      Accidental {
+          accidentalAccidentalValue :: AccidentalValue -- ^ text content
+        , accidentalCautionary :: (Maybe YesNo) -- ^ /cautionary/ attribute
+        , accidentalEditorial :: (Maybe YesNo) -- ^ /editorial/ attribute
+        , accidentalParentheses :: (Maybe YesNo) -- ^ /parentheses/ attribute
+        , accidentalBracket :: (Maybe YesNo) -- ^ /bracket/ attribute
+        , accidentalSize :: (Maybe SymbolSize) -- ^ /size/ attribute
+        , accidentalDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , accidentalDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , accidentalRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , accidentalRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , accidentalFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , accidentalFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , accidentalFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , accidentalFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , accidentalColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Accidental where
+    emitXml (Accidental a b c d e f g h i j k l m n o) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "cautionary" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "editorial" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "parentheses" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "bracket" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "size" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) l] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) m] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) n] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) o])
+        []
+parseAccidental :: P.XParse Accidental
+parseAccidental = 
+      Accidental
+        <$> (P.xtext >>= parseAccidentalValue)
+        <*> P.optional (P.xattr (P.name "cautionary") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "editorial") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "parentheses") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "bracket") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "size") >>= parseSymbolSize)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'Accidental'
+mkAccidental :: AccidentalValue -> Accidental
+mkAccidental a = Accidental a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @accidental-mark@ /(complex)/
+--
+-- An accidental-mark can be used as a separate notation or as part of an ornament. When used in an ornament, position and placement are relative to the ornament, not relative to the note.
+data AccidentalMark = 
+      AccidentalMark {
+          accidentalMarkAccidentalValue :: AccidentalValue -- ^ text content
+        , accidentalMarkDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , accidentalMarkDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , accidentalMarkRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , accidentalMarkRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , accidentalMarkFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , accidentalMarkFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , accidentalMarkFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , accidentalMarkFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , accidentalMarkColor :: (Maybe Color) -- ^ /color/ attribute
+        , accidentalMarkPlacement :: (Maybe AboveBelow) -- ^ /placement/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml AccidentalMark where
+    emitXml (AccidentalMark a b c d e f g h i j k) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "placement" Nothing).emitXml) k])
+        []
+parseAccidentalMark :: P.XParse AccidentalMark
+parseAccidentalMark = 
+      AccidentalMark
+        <$> (P.xtext >>= parseAccidentalValue)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "placement") >>= parseAboveBelow)
+
+-- | Smart constructor for 'AccidentalMark'
+mkAccidentalMark :: AccidentalValue -> AccidentalMark
+mkAccidentalMark a = AccidentalMark a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @accidental-text@ /(complex)/
+--
+-- The accidental-text type represents an element with an accidental value and text-formatting attributes.
+data AccidentalText = 
+      AccidentalText {
+          accidentalTextAccidentalValue :: AccidentalValue -- ^ text content
+        , accidentalTextLang :: (Maybe Lang) -- ^ /xml:lang/ attribute
+        , accidentalTextEnclosure :: (Maybe Enclosure) -- ^ /enclosure/ attribute
+        , accidentalTextJustify :: (Maybe LeftCenterRight) -- ^ /justify/ attribute
+        , accidentalTextHalign :: (Maybe LeftCenterRight) -- ^ /halign/ attribute
+        , accidentalTextValign :: (Maybe Valign) -- ^ /valign/ attribute
+        , accidentalTextDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , accidentalTextDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , accidentalTextRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , accidentalTextRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , accidentalTextFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , accidentalTextFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , accidentalTextFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , accidentalTextFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , accidentalTextColor :: (Maybe Color) -- ^ /color/ attribute
+        , accidentalTextUnderline :: (Maybe NumberOfLines) -- ^ /underline/ attribute
+        , accidentalTextOverline :: (Maybe NumberOfLines) -- ^ /overline/ attribute
+        , accidentalTextLineThrough :: (Maybe NumberOfLines) -- ^ /line-through/ attribute
+        , accidentalTextRotation :: (Maybe RotationDegrees) -- ^ /rotation/ attribute
+        , accidentalTextLetterSpacing :: (Maybe NumberOrNormal) -- ^ /letter-spacing/ attribute
+        , accidentalTextLineHeight :: (Maybe NumberOrNormal) -- ^ /line-height/ attribute
+        , accidentalTextDir :: (Maybe TextDirection) -- ^ /dir/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml AccidentalText where
+    emitXml (AccidentalText a b c d e f g h i j k l m n o p q r s t u v) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "lang" (Just "xml")).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "enclosure" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "justify" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "halign" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "valign" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) l] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) m] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) n] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) o] ++
+        [maybe XEmpty (XAttr (QN "underline" Nothing).emitXml) p] ++
+        [maybe XEmpty (XAttr (QN "overline" Nothing).emitXml) q] ++
+        [maybe XEmpty (XAttr (QN "line-through" Nothing).emitXml) r] ++
+        [maybe XEmpty (XAttr (QN "rotation" Nothing).emitXml) s] ++
+        [maybe XEmpty (XAttr (QN "letter-spacing" Nothing).emitXml) t] ++
+        [maybe XEmpty (XAttr (QN "line-height" Nothing).emitXml) u] ++
+        [maybe XEmpty (XAttr (QN "dir" Nothing).emitXml) v])
+        []
+parseAccidentalText :: P.XParse AccidentalText
+parseAccidentalText = 
+      AccidentalText
+        <$> (P.xtext >>= parseAccidentalValue)
+        <*> P.optional (P.xattr (P.name "xml:lang") >>= parseLang)
+        <*> P.optional (P.xattr (P.name "enclosure") >>= parseEnclosure)
+        <*> P.optional (P.xattr (P.name "justify") >>= parseLeftCenterRight)
+        <*> P.optional (P.xattr (P.name "halign") >>= parseLeftCenterRight)
+        <*> P.optional (P.xattr (P.name "valign") >>= parseValign)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "underline") >>= parseNumberOfLines)
+        <*> P.optional (P.xattr (P.name "overline") >>= parseNumberOfLines)
+        <*> P.optional (P.xattr (P.name "line-through") >>= parseNumberOfLines)
+        <*> P.optional (P.xattr (P.name "rotation") >>= parseRotationDegrees)
+        <*> P.optional (P.xattr (P.name "letter-spacing") >>= parseNumberOrNormal)
+        <*> P.optional (P.xattr (P.name "line-height") >>= parseNumberOrNormal)
+        <*> P.optional (P.xattr (P.name "dir") >>= parseTextDirection)
+
+-- | Smart constructor for 'AccidentalText'
+mkAccidentalText :: AccidentalValue -> AccidentalText
+mkAccidentalText a = AccidentalText a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @accord@ /(complex)/
+--
+-- The accord type represents the tuning of a single string in the scordatura element. It uses the same group of elements as the staff-tuning element. Strings are numbered from high to low.
+data Accord = 
+      Accord {
+          accordString :: (Maybe StringNumber) -- ^ /string/ attribute
+        , accordTuning :: Tuning
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Accord where
+    emitXml (Accord a b) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "string" Nothing).emitXml) a])
+        ([emitXml b])
+parseAccord :: P.XParse Accord
+parseAccord = 
+      Accord
+        <$> P.optional (P.xattr (P.name "string") >>= parseStringNumber)
+        <*> parseTuning
+
+-- | Smart constructor for 'Accord'
+mkAccord :: Tuning -> Accord
+mkAccord b = Accord Nothing b
+
+-- | @accordion-registration@ /(complex)/
+--
+-- The accordion-registration type is use for accordion registration symbols. These are circular symbols divided horizontally into high, middle, and low sections that correspond to 4', 8', and 16' pipes. Each accordion-high, accordion-middle, and accordion-low element represents the presence of one or more dots in the registration diagram. An accordion-registration element needs to have at least one of the child elements present.
+data AccordionRegistration = 
+      AccordionRegistration {
+          accordionRegistrationDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , accordionRegistrationDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , accordionRegistrationRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , accordionRegistrationRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , accordionRegistrationFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , accordionRegistrationFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , accordionRegistrationFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , accordionRegistrationFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , accordionRegistrationColor :: (Maybe Color) -- ^ /color/ attribute
+        , accordionRegistrationAccordionHigh :: (Maybe Empty) -- ^ /accordion-high/ child element
+        , accordionRegistrationAccordionMiddle :: (Maybe AccordionMiddle) -- ^ /accordion-middle/ child element
+        , accordionRegistrationAccordionLow :: (Maybe Empty) -- ^ /accordion-low/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml AccordionRegistration where
+    emitXml (AccordionRegistration a b c d e f g h i j k l) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) i])
+        ([maybe XEmpty (XElement (QN "accordion-high" Nothing).emitXml) j] ++
+        [maybe XEmpty (XElement (QN "accordion-middle" Nothing).emitXml) k] ++
+        [maybe XEmpty (XElement (QN "accordion-low" Nothing).emitXml) l])
+parseAccordionRegistration :: P.XParse AccordionRegistration
+parseAccordionRegistration = 
+      AccordionRegistration
+        <$> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xchild (P.name "accordion-high") (parseEmpty))
+        <*> P.optional (P.xchild (P.name "accordion-middle") (P.xtext >>= parseAccordionMiddle))
+        <*> P.optional (P.xchild (P.name "accordion-low") (parseEmpty))
+
+-- | Smart constructor for 'AccordionRegistration'
+mkAccordionRegistration :: AccordionRegistration
+mkAccordionRegistration = AccordionRegistration Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @appearance@ /(complex)/
+--
+-- The appearance type controls general graphical settings for the music's final form appearance on a printed page of display. Currently this includes support for line widths and definitions for note sizes, plus an extension element for other aspects of appearance.
+data Appearance = 
+      Appearance {
+          appearanceLineWidth :: [LineWidth] -- ^ /line-width/ child element
+        , appearanceNoteSize :: [NoteSize] -- ^ /note-size/ child element
+        , appearanceOtherAppearance :: [OtherAppearance] -- ^ /other-appearance/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Appearance where
+    emitXml (Appearance a b c) =
+      XContent XEmpty
+        []
+        (map (XElement (QN "line-width" Nothing).emitXml) a ++
+        map (XElement (QN "note-size" Nothing).emitXml) b ++
+        map (XElement (QN "other-appearance" Nothing).emitXml) c)
+parseAppearance :: P.XParse Appearance
+parseAppearance = 
+      Appearance
+        <$> P.many (P.xchild (P.name "line-width") (parseLineWidth))
+        <*> P.many (P.xchild (P.name "note-size") (parseNoteSize))
+        <*> P.many (P.xchild (P.name "other-appearance") (parseOtherAppearance))
+
+-- | Smart constructor for 'Appearance'
+mkAppearance :: Appearance
+mkAppearance = Appearance [] [] []
+
+-- | @arpeggiate@ /(complex)/
+--
+-- The arpeggiate type indicates that this note is part of an arpeggiated chord. The number attribute can be used to distinguish between two simultaneous chords arpeggiated separately (different numbers) or together (same number). The up-down attribute is used if there is an arrow on the arpeggio sign. By default, arpeggios go from the lowest to highest note.
+data Arpeggiate = 
+      Arpeggiate {
+          arpeggiateNumber :: (Maybe NumberLevel) -- ^ /number/ attribute
+        , arpeggiateDirection :: (Maybe UpDown) -- ^ /direction/ attribute
+        , arpeggiateDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , arpeggiateDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , arpeggiateRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , arpeggiateRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , arpeggiatePlacement :: (Maybe AboveBelow) -- ^ /placement/ attribute
+        , arpeggiateColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Arpeggiate where
+    emitXml (Arpeggiate a b c d e f g h) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "number" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "direction" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "placement" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) h])
+        []
+parseArpeggiate :: P.XParse Arpeggiate
+parseArpeggiate = 
+      Arpeggiate
+        <$> P.optional (P.xattr (P.name "number") >>= parseNumberLevel)
+        <*> P.optional (P.xattr (P.name "direction") >>= parseUpDown)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "placement") >>= parseAboveBelow)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'Arpeggiate'
+mkArpeggiate :: Arpeggiate
+mkArpeggiate = Arpeggiate Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @articulations@ /(complex)/
+--
+-- Articulations and accents are grouped together here.
+data Articulations = 
+      Articulations {
+          articulationsArticulations :: [ChxArticulations]
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Articulations where
+    emitXml (Articulations a) =
+      XReps [emitXml a]
+parseArticulations :: P.XParse Articulations
+parseArticulations = 
+      Articulations
+        <$> P.many (parseChxArticulations)
+
+-- | Smart constructor for 'Articulations'
+mkArticulations :: Articulations
+mkArticulations = Articulations []
+
+-- | @attributes@ /(complex)/
+--
+-- The attributes element contains musical information that typically changes on measure boundaries. This includes key and time signatures, clefs, transpositions, and staving.
+data Attributes = 
+      Attributes {
+          attributesEditorial :: Editorial
+        , attributesDivisions :: (Maybe PositiveDivisions) -- ^ /divisions/ child element
+        , attributesKey :: [Key] -- ^ /key/ child element
+        , attributesTime :: [Time] -- ^ /time/ child element
+        , attributesStaves :: (Maybe NonNegativeInteger) -- ^ /staves/ child element
+        , attributesPartSymbol :: (Maybe PartSymbol) -- ^ /part-symbol/ child element
+        , attributesInstruments :: (Maybe NonNegativeInteger) -- ^ /instruments/ child element
+        , attributesClef :: [Clef] -- ^ /clef/ child element
+        , attributesStaffDetails :: [StaffDetails] -- ^ /staff-details/ child element
+        , attributesTranspose :: (Maybe Transpose) -- ^ /transpose/ child element
+        , attributesDirective :: [Directive] -- ^ /directive/ child element
+        , attributesMeasureStyle :: [MeasureStyle] -- ^ /measure-style/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Attributes where
+    emitXml (Attributes a b c d e f g h i j k l) =
+      XContent XEmpty
+        []
+        ([emitXml a] ++
+        [maybe XEmpty (XElement (QN "divisions" Nothing).emitXml) b] ++
+        map (XElement (QN "key" Nothing).emitXml) c ++
+        map (XElement (QN "time" Nothing).emitXml) d ++
+        [maybe XEmpty (XElement (QN "staves" Nothing).emitXml) e] ++
+        [maybe XEmpty (XElement (QN "part-symbol" Nothing).emitXml) f] ++
+        [maybe XEmpty (XElement (QN "instruments" Nothing).emitXml) g] ++
+        map (XElement (QN "clef" Nothing).emitXml) h ++
+        map (XElement (QN "staff-details" Nothing).emitXml) i ++
+        [maybe XEmpty (XElement (QN "transpose" Nothing).emitXml) j] ++
+        map (XElement (QN "directive" Nothing).emitXml) k ++
+        map (XElement (QN "measure-style" Nothing).emitXml) l)
+parseAttributes :: P.XParse Attributes
+parseAttributes = 
+      Attributes
+        <$> parseEditorial
+        <*> P.optional (P.xchild (P.name "divisions") (P.xtext >>= parsePositiveDivisions))
+        <*> P.many (P.xchild (P.name "key") (parseKey))
+        <*> P.many (P.xchild (P.name "time") (parseTime))
+        <*> P.optional (P.xchild (P.name "staves") (P.xtext >>= parseNonNegativeInteger))
+        <*> P.optional (P.xchild (P.name "part-symbol") (parsePartSymbol))
+        <*> P.optional (P.xchild (P.name "instruments") (P.xtext >>= parseNonNegativeInteger))
+        <*> P.many (P.xchild (P.name "clef") (parseClef))
+        <*> P.many (P.xchild (P.name "staff-details") (parseStaffDetails))
+        <*> P.optional (P.xchild (P.name "transpose") (parseTranspose))
+        <*> P.many (P.xchild (P.name "directive") (parseDirective))
+        <*> P.many (P.xchild (P.name "measure-style") (parseMeasureStyle))
+
+-- | Smart constructor for 'Attributes'
+mkAttributes :: Editorial -> Attributes
+mkAttributes a = Attributes a Nothing [] [] Nothing Nothing Nothing [] [] Nothing [] []
+
+-- | @backup@ /(complex)/
+--
+-- The backup and forward elements are required to coordinate multiple voices in one part, including music on multiple staves. The backup type is generally used to move between voices and staves. Thus the backup element does not include voice or staff elements. Duration values should always be positive, and should not cross measure boundaries.
+data Backup = 
+      Backup {
+          backupDuration :: Duration
+        , backupEditorial :: Editorial
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Backup where
+    emitXml (Backup a b) =
+      XReps [emitXml a,emitXml b]
+parseBackup :: P.XParse Backup
+parseBackup = 
+      Backup
+        <$> parseDuration
+        <*> parseEditorial
+
+-- | Smart constructor for 'Backup'
+mkBackup :: Duration -> Editorial -> Backup
+mkBackup a b = Backup a b
+
+-- | @bar-style-color@ /(complex)/
+--
+-- The bar-style-color type contains barline style and color information.
+data BarStyleColor = 
+      BarStyleColor {
+          barStyleColorBarStyle :: BarStyle -- ^ text content
+        , barStyleColorColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml BarStyleColor where
+    emitXml (BarStyleColor a b) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "color" Nothing).emitXml) b])
+        []
+parseBarStyleColor :: P.XParse BarStyleColor
+parseBarStyleColor = 
+      BarStyleColor
+        <$> (P.xtext >>= parseBarStyle)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'BarStyleColor'
+mkBarStyleColor :: BarStyle -> BarStyleColor
+mkBarStyleColor a = BarStyleColor a Nothing
+
+-- | @barline@ /(complex)/
+--
+-- If a barline is other than a normal single barline, it should be represented by a barline type that describes it. This includes information about repeats and multiple endings, as well as line style. Barline data is on the same level as the other musical data in a score - a child of a measure in a partwise score, or a part in a timewise score. This allows for barlines within measures, as in dotted barlines that subdivide measures in complex meters. The two fermata elements allow for fermatas on both sides of the barline (the lower one inverted).
+-- 	
+-- Barlines have a location attribute to make it easier to process barlines independently of the other musical data in a score. It is often easier to set up measures separately from entering notes. The location attribute must match where the barline element occurs within the rest of the musical data in the score. If location is left, it should be the first element in the measure, aside from the print, bookmark, and link elements. If location is right, it should be the last element, again with the possible exception of the print, bookmark, and link elements. If no location is specified, the right barline is the default. The segno, coda, and divisions attributes work the same way as in the sound element. They are used for playback when barline elements contain segno or coda child elements.
+data Barline = 
+      Barline {
+          barlineLocation :: (Maybe RightLeftMiddle) -- ^ /location/ attribute
+        , barlineSegno :: (Maybe Token) -- ^ /segno/ attribute
+        , barlineCoda :: (Maybe Token) -- ^ /coda/ attribute
+        , barlineDivisions :: (Maybe Divisions) -- ^ /divisions/ attribute
+        , barlineBarStyle :: (Maybe BarStyleColor) -- ^ /bar-style/ child element
+        , barlineEditorial :: Editorial
+        , barlineWavyLine :: (Maybe WavyLine) -- ^ /wavy-line/ child element
+        , barlineSegno1 :: (Maybe EmptyPrintStyle) -- ^ /segno/ child element
+        , barlineCoda1 :: (Maybe EmptyPrintStyle) -- ^ /coda/ child element
+        , barlineFermata :: [Fermata] -- ^ /fermata/ child element
+        , barlineEnding :: (Maybe Ending) -- ^ /ending/ child element
+        , barlineRepeat :: (Maybe Repeat) -- ^ /repeat/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Barline where
+    emitXml (Barline a b c d e f g h i j k l) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "location" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "segno" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "coda" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "divisions" Nothing).emitXml) d])
+        ([maybe XEmpty (XElement (QN "bar-style" Nothing).emitXml) e] ++
+        [emitXml f] ++
+        [maybe XEmpty (XElement (QN "wavy-line" Nothing).emitXml) g] ++
+        [maybe XEmpty (XElement (QN "segno" Nothing).emitXml) h] ++
+        [maybe XEmpty (XElement (QN "coda" Nothing).emitXml) i] ++
+        map (XElement (QN "fermata" Nothing).emitXml) j ++
+        [maybe XEmpty (XElement (QN "ending" Nothing).emitXml) k] ++
+        [maybe XEmpty (XElement (QN "repeat" Nothing).emitXml) l])
+parseBarline :: P.XParse Barline
+parseBarline = 
+      Barline
+        <$> P.optional (P.xattr (P.name "location") >>= parseRightLeftMiddle)
+        <*> P.optional (P.xattr (P.name "segno") >>= parseToken)
+        <*> P.optional (P.xattr (P.name "coda") >>= parseToken)
+        <*> P.optional (P.xattr (P.name "divisions") >>= parseDivisions)
+        <*> P.optional (P.xchild (P.name "bar-style") (parseBarStyleColor))
+        <*> parseEditorial
+        <*> P.optional (P.xchild (P.name "wavy-line") (parseWavyLine))
+        <*> P.optional (P.xchild (P.name "segno") (parseEmptyPrintStyle))
+        <*> P.optional (P.xchild (P.name "coda") (parseEmptyPrintStyle))
+        <*> P.many (P.xchild (P.name "fermata") (parseFermata))
+        <*> P.optional (P.xchild (P.name "ending") (parseEnding))
+        <*> P.optional (P.xchild (P.name "repeat") (parseRepeat))
+
+-- | Smart constructor for 'Barline'
+mkBarline :: Editorial -> Barline
+mkBarline f = Barline Nothing Nothing Nothing Nothing Nothing f Nothing Nothing Nothing [] Nothing Nothing
+
+-- | @barre@ /(complex)/
+--
+-- The barre element indicates placing a finger over multiple strings on a single fret. The type is "start" for the lowest pitched string (e.g., the string with the highest MusicXML number) and is "stop" for the highest pitched string.
+data Barre = 
+      Barre {
+          barreType :: StartStop -- ^ /type/ attribute
+        , barreColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Barre where
+    emitXml (Barre a b) =
+      XContent XEmpty
+        ([XAttr (QN "type" Nothing) (emitXml a)] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) b])
+        []
+parseBarre :: P.XParse Barre
+parseBarre = 
+      Barre
+        <$> (P.xattr (P.name "type") >>= parseStartStop)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'Barre'
+mkBarre :: StartStop -> Barre
+mkBarre a = Barre a Nothing
+
+-- | @bass@ /(complex)/
+--
+-- The bass type is used to indicate a bass note in popular music chord symbols, e.g. G/C. It is generally not used in functional harmony, as inversion is generally not used in pop chord symbols. As with root, it is divided into step and alter elements, similar to pitches.
+data Bass = 
+      Bass {
+          bassBassStep :: BassStep -- ^ /bass-step/ child element
+        , bassBassAlter :: (Maybe BassAlter) -- ^ /bass-alter/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Bass where
+    emitXml (Bass a b) =
+      XContent XEmpty
+        []
+        ([XElement (QN "bass-step" Nothing) (emitXml a)] ++
+        [maybe XEmpty (XElement (QN "bass-alter" Nothing).emitXml) b])
+parseBass :: P.XParse Bass
+parseBass = 
+      Bass
+        <$> (P.xchild (P.name "bass-step") (parseBassStep))
+        <*> P.optional (P.xchild (P.name "bass-alter") (parseBassAlter))
+
+-- | Smart constructor for 'Bass'
+mkBass :: BassStep -> Bass
+mkBass a = Bass a Nothing
+
+-- | @bass-alter@ /(complex)/
+--
+-- The bass-alter type represents the chromatic alteration of the bass of the current chord within the harmony element. In some chord styles, the text for the bass-step element may include bass-alter information. In that case, the print-object attribute of the bass-alter element can be set to no. The location attribute indicates whether the alteration should appear to the left or the right of the bass-step; it is right by default.
+data BassAlter = 
+      BassAlter {
+          bassAlterSemitones :: Semitones -- ^ text content
+        , bassAlterLocation :: (Maybe LeftRight) -- ^ /location/ attribute
+        , bassAlterPrintObject :: (Maybe YesNo) -- ^ /print-object/ attribute
+        , bassAlterDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , bassAlterDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , bassAlterRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , bassAlterRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , bassAlterFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , bassAlterFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , bassAlterFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , bassAlterFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , bassAlterColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml BassAlter where
+    emitXml (BassAlter a b c d e f g h i j k l) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "location" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "print-object" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) l])
+        []
+parseBassAlter :: P.XParse BassAlter
+parseBassAlter = 
+      BassAlter
+        <$> (P.xtext >>= parseSemitones)
+        <*> P.optional (P.xattr (P.name "location") >>= parseLeftRight)
+        <*> P.optional (P.xattr (P.name "print-object") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'BassAlter'
+mkBassAlter :: Semitones -> BassAlter
+mkBassAlter a = BassAlter a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @bass-step@ /(complex)/
+--
+-- The bass-step type represents the pitch step of the bass of the current chord within the harmony element. The text attribute indicates how the bass should appear on the page if not using the element contents.
+data BassStep = 
+      BassStep {
+          bassStepStep :: Step -- ^ text content
+        , bassStepText :: (Maybe Token) -- ^ /text/ attribute
+        , bassStepDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , bassStepDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , bassStepRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , bassStepRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , bassStepFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , bassStepFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , bassStepFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , bassStepFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , bassStepColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml BassStep where
+    emitXml (BassStep a b c d e f g h i j k) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "text" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) k])
+        []
+parseBassStep :: P.XParse BassStep
+parseBassStep = 
+      BassStep
+        <$> (P.xtext >>= parseStep)
+        <*> P.optional (P.xattr (P.name "text") >>= parseToken)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'BassStep'
+mkBassStep :: Step -> BassStep
+mkBassStep a = BassStep a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @beam@ /(complex)/
+--
+-- Beam values include begin, continue, end, forward hook, and backward hook. Up to six concurrent beam levels are available to cover up to 256th notes. The repeater attribute, used for tremolos, needs to be specified with a "yes" value for each beam using it. Beams that have a begin value can also have a fan attribute to indicate accelerandos and ritardandos using fanned beams. The fan attribute may also be used with a continue value if the fanning direction changes on that note. The value is "none" if not specified.
+-- 	
+-- Note that the beam number does not distinguish sets of beams that overlap, as it does for slur and other elements. Beaming groups are distinguished by being in different voices and/or the presence or absence of grace and cue elements.
+data Beam = 
+      Beam {
+          beamBeamValue :: BeamValue -- ^ text content
+        , beamNumber :: (Maybe BeamLevel) -- ^ /number/ attribute
+        , beamRepeater :: (Maybe YesNo) -- ^ /repeater/ attribute
+        , beamFan :: (Maybe Fan) -- ^ /fan/ attribute
+        , beamColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Beam where
+    emitXml (Beam a b c d e) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "number" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "repeater" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "fan" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) e])
+        []
+parseBeam :: P.XParse Beam
+parseBeam = 
+      Beam
+        <$> (P.xtext >>= parseBeamValue)
+        <*> P.optional (P.xattr (P.name "number") >>= parseBeamLevel)
+        <*> P.optional (P.xattr (P.name "repeater") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "fan") >>= parseFan)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'Beam'
+mkBeam :: BeamValue -> Beam
+mkBeam a = Beam a Nothing Nothing Nothing Nothing
+
+-- | @beat-repeat@ /(complex)/
+--
+-- The beat-repeat type is used to indicate that a single beat (but possibly many notes) is repeated. Both the start and stop of the beat being repeated should be specified. The slashes attribute specifies the number of slashes to use in the symbol. The use-dots attribute indicates whether or not to use dots as well (for instance, with mixed rhythm patterns). By default, the value for slashes is 1 and the value for use-dots is no.
+-- 	
+-- The beat-repeat element specifies a notation style for repetitions. The actual music being repeated needs to be repeated within the MusicXML file. This element specifies the notation that indicates the repeat.
+data BeatRepeat = 
+      BeatRepeat {
+          beatRepeatType :: StartStop -- ^ /type/ attribute
+        , beatRepeatSlashes :: (Maybe PositiveInteger) -- ^ /slashes/ attribute
+        , beatRepeatUseDots :: (Maybe YesNo) -- ^ /use-dots/ attribute
+        , beatRepeatSlash :: (Maybe Slash)
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml BeatRepeat where
+    emitXml (BeatRepeat a b c d) =
+      XContent XEmpty
+        ([XAttr (QN "type" Nothing) (emitXml a)] ++
+        [maybe XEmpty (XAttr (QN "slashes" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "use-dots" Nothing).emitXml) c])
+        ([emitXml d])
+parseBeatRepeat :: P.XParse BeatRepeat
+parseBeatRepeat = 
+      BeatRepeat
+        <$> (P.xattr (P.name "type") >>= parseStartStop)
+        <*> P.optional (P.xattr (P.name "slashes") >>= parsePositiveInteger)
+        <*> P.optional (P.xattr (P.name "use-dots") >>= parseYesNo)
+        <*> P.optional (parseSlash)
+
+-- | Smart constructor for 'BeatRepeat'
+mkBeatRepeat :: StartStop -> BeatRepeat
+mkBeatRepeat a = BeatRepeat a Nothing Nothing Nothing
+
+-- | @bend@ /(complex)/
+--
+-- The bend type is used in guitar and tablature. The bend-alter element indicates the number of steps in the bend, similar to the alter element. As with the alter element, numbers like 0.5 can be used to indicate microtones. Negative numbers indicate pre-bends or releases; the pre-bend and release elements are used to distinguish what is intended. A with-bar element indicates that the bend is to be done at the bridge with a whammy or vibrato bar. The content of the element indicates how this should be notated.
+data Bend = 
+      Bend {
+          bendDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , bendDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , bendRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , bendRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , bendFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , bendFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , bendFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , bendFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , bendColor :: (Maybe Color) -- ^ /color/ attribute
+        , bendAccelerate :: (Maybe YesNo) -- ^ /accelerate/ attribute
+        , bendBeats :: (Maybe TrillBeats) -- ^ /beats/ attribute
+        , bendFirstBeat :: (Maybe Percent) -- ^ /first-beat/ attribute
+        , bendLastBeat :: (Maybe Percent) -- ^ /last-beat/ attribute
+        , bendBendAlter :: Semitones -- ^ /bend-alter/ child element
+        , bendBend :: (Maybe ChxBend)
+        , bendWithBar :: (Maybe PlacementText) -- ^ /with-bar/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Bend where
+    emitXml (Bend a b c d e f g h i j k l m n o p) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "accelerate" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "beats" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "first-beat" Nothing).emitXml) l] ++
+        [maybe XEmpty (XAttr (QN "last-beat" Nothing).emitXml) m])
+        ([XElement (QN "bend-alter" Nothing) (emitXml n)] ++
+        [emitXml o] ++
+        [maybe XEmpty (XElement (QN "with-bar" Nothing).emitXml) p])
+parseBend :: P.XParse Bend
+parseBend = 
+      Bend
+        <$> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "accelerate") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "beats") >>= parseTrillBeats)
+        <*> P.optional (P.xattr (P.name "first-beat") >>= parsePercent)
+        <*> P.optional (P.xattr (P.name "last-beat") >>= parsePercent)
+        <*> (P.xchild (P.name "bend-alter") (P.xtext >>= parseSemitones))
+        <*> P.optional (parseChxBend)
+        <*> P.optional (P.xchild (P.name "with-bar") (parsePlacementText))
+
+-- | Smart constructor for 'Bend'
+mkBend :: Semitones -> Bend
+mkBend n = Bend Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing n Nothing Nothing
+
+-- | @bookmark@ /(complex)/
+--
+-- The bookmark type serves as a well-defined target for an incoming simple XLink.
+data Bookmark = 
+      Bookmark {
+          bookmarkId :: ID -- ^ /id/ attribute
+        , bookmarkName :: (Maybe Token) -- ^ /name/ attribute
+        , bookmarkElement :: (Maybe NMTOKEN) -- ^ /element/ attribute
+        , bookmarkPosition :: (Maybe PositiveInteger) -- ^ /position/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Bookmark where
+    emitXml (Bookmark a b c d) =
+      XContent XEmpty
+        ([XAttr (QN "id" Nothing) (emitXml a)] ++
+        [maybe XEmpty (XAttr (QN "name" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "element" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "position" Nothing).emitXml) d])
+        []
+parseBookmark :: P.XParse Bookmark
+parseBookmark = 
+      Bookmark
+        <$> (P.xattr (P.name "id") >>= parseID)
+        <*> P.optional (P.xattr (P.name "name") >>= parseToken)
+        <*> P.optional (P.xattr (P.name "element") >>= parseNMTOKEN)
+        <*> P.optional (P.xattr (P.name "position") >>= parsePositiveInteger)
+
+-- | Smart constructor for 'Bookmark'
+mkBookmark :: ID -> Bookmark
+mkBookmark a = Bookmark a Nothing Nothing Nothing
+
+-- | @bracket@ /(complex)/
+--
+-- Brackets are combined with words in a variety of modern directions. The line-end attribute specifies if there is a jog up or down (or both), an arrow, or nothing at the start or end of the bracket. If the line-end is up or down, the length of the jog can be specified using the end-length attribute. The line-type is solid by default.
+data Bracket = 
+      Bracket {
+          bracketType :: StartStop -- ^ /type/ attribute
+        , bracketNumber :: (Maybe NumberLevel) -- ^ /number/ attribute
+        , bracketLineEnd :: LineEnd -- ^ /line-end/ attribute
+        , bracketEndLength :: (Maybe Tenths) -- ^ /end-length/ attribute
+        , bracketLineType :: (Maybe LineType) -- ^ /line-type/ attribute
+        , bracketDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , bracketDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , bracketRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , bracketRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , bracketColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Bracket where
+    emitXml (Bracket a b c d e f g h i j) =
+      XContent XEmpty
+        ([XAttr (QN "type" Nothing) (emitXml a)] ++
+        [maybe XEmpty (XAttr (QN "number" Nothing).emitXml) b] ++
+        [XAttr (QN "line-end" Nothing) (emitXml c)] ++
+        [maybe XEmpty (XAttr (QN "end-length" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "line-type" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) j])
+        []
+parseBracket :: P.XParse Bracket
+parseBracket = 
+      Bracket
+        <$> (P.xattr (P.name "type") >>= parseStartStop)
+        <*> P.optional (P.xattr (P.name "number") >>= parseNumberLevel)
+        <*> (P.xattr (P.name "line-end") >>= parseLineEnd)
+        <*> P.optional (P.xattr (P.name "end-length") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "line-type") >>= parseLineType)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'Bracket'
+mkBracket :: StartStop -> LineEnd -> Bracket
+mkBracket a c = Bracket a Nothing c Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @cancel@ /(complex)/
+--
+-- A cancel element indicates that the old key signature should be cancelled before the new one appears. This will always happen when changing to C major or A minor and need not be specified then. The cancel value matches the fifths value of the cancelled key signature (e.g., a cancel of -2 will provide an explicit cancellation for changing from B flat major to F major). The optional location attribute indicates whether the cancellation appears to the left or the right of the new key signature. It is left by default.
+data Cancel = 
+      Cancel {
+          cancelFifths :: Fifths -- ^ text content
+        , cancelLocation :: (Maybe LeftRight) -- ^ /location/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Cancel where
+    emitXml (Cancel a b) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "location" Nothing).emitXml) b])
+        []
+parseCancel :: P.XParse Cancel
+parseCancel = 
+      Cancel
+        <$> (P.xtext >>= parseFifths)
+        <*> P.optional (P.xattr (P.name "location") >>= parseLeftRight)
+
+-- | Smart constructor for 'Cancel'
+mkCancel :: Fifths -> Cancel
+mkCancel a = Cancel a Nothing
+
+-- | @clef@ /(complex)/
+--
+-- Clefs are represented by a combination of sign, line, and clef-octave-change elements. The optional number attribute refers to staff numbers within the part. A value of 1 is assumed if not present.
+-- 
+-- Sometimes clefs are added to the staff in non-standard line positions, either to indicate cue passages, or when there are multiple clefs present simultaneously on one staff. In this situation, the additional attribute is set to "yes" and the line value is ignored. The size attribute is used for clefs where the additional attribute is "yes". It is typically used to indicate cue clefs.
+data Clef = 
+      Clef {
+          clefNumber :: (Maybe StaffNumber) -- ^ /number/ attribute
+        , clefAdditional :: (Maybe YesNo) -- ^ /additional/ attribute
+        , clefSize :: (Maybe SymbolSize) -- ^ /size/ attribute
+        , clefDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , clefDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , clefRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , clefRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , clefFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , clefFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , clefFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , clefFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , clefColor :: (Maybe Color) -- ^ /color/ attribute
+        , clefPrintObject :: (Maybe YesNo) -- ^ /print-object/ attribute
+        , clefSign :: ClefSign -- ^ /sign/ child element
+        , clefLine :: (Maybe StaffLine) -- ^ /line/ child element
+        , clefClefOctaveChange :: (Maybe Int) -- ^ /clef-octave-change/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Clef where
+    emitXml (Clef a b c d e f g h i j k l m n o p) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "number" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "additional" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "size" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) l] ++
+        [maybe XEmpty (XAttr (QN "print-object" Nothing).emitXml) m])
+        ([XElement (QN "sign" Nothing) (emitXml n)] ++
+        [maybe XEmpty (XElement (QN "line" Nothing).emitXml) o] ++
+        [maybe XEmpty (XElement (QN "clef-octave-change" Nothing).emitXml) p])
+parseClef :: P.XParse Clef
+parseClef = 
+      Clef
+        <$> P.optional (P.xattr (P.name "number") >>= parseStaffNumber)
+        <*> P.optional (P.xattr (P.name "additional") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "size") >>= parseSymbolSize)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "print-object") >>= parseYesNo)
+        <*> (P.xchild (P.name "sign") (P.xtext >>= parseClefSign))
+        <*> P.optional (P.xchild (P.name "line") (P.xtext >>= parseStaffLine))
+        <*> P.optional (P.xchild (P.name "clef-octave-change") (P.xtext >>= (P.xread "Integer")))
+
+-- | Smart constructor for 'Clef'
+mkClef :: ClefSign -> Clef
+mkClef n = Clef Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing n Nothing Nothing
+
+-- | @credit@ /(complex)/
+--
+-- The credit type represents the appearance of the title, composer, arranger, lyricist, copyright, dedication, and other text and graphics that commonly appears on the first page of a score. The credit-words and credit-image elements are similar to the words and image elements for directions. However, since the credit is not part of a measure, the default-x and default-y attributes adjust the origin relative to the bottom left-hand corner of the first page. The enclosure for credit-words is none by default.
+-- 	
+-- By default, a series of credit-words elements within a single credit element follow one another in sequence visually. Non-positional formatting attributes are carried over from the previous element by default.
+-- 	
+-- The page attribute for the credit element, new in Version 2.0, specifies the page number where the credit should appear. This is an integer value that starts with 1 for the first page. Its value is 1 by default. Since credits occur before the music, these page numbers do not refer to the page numbering specified by the print element's page-number attribute.
+data Credit = 
+      Credit {
+          creditPage :: (Maybe PositiveInteger) -- ^ /page/ attribute
+        , creditLink :: [Link] -- ^ /link/ child element
+        , creditBookmark :: [Bookmark] -- ^ /bookmark/ child element
+        , creditCredit :: ChxCredit
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Credit where
+    emitXml (Credit a b c d) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "page" Nothing).emitXml) a])
+        (map (XElement (QN "link" Nothing).emitXml) b ++
+        map (XElement (QN "bookmark" Nothing).emitXml) c ++
+        [emitXml d])
+parseCredit :: P.XParse Credit
+parseCredit = 
+      Credit
+        <$> P.optional (P.xattr (P.name "page") >>= parsePositiveInteger)
+        <*> P.many (P.xchild (P.name "link") (parseLink))
+        <*> P.many (P.xchild (P.name "bookmark") (parseBookmark))
+        <*> parseChxCredit
+
+-- | Smart constructor for 'Credit'
+mkCredit :: ChxCredit -> Credit
+mkCredit d = Credit Nothing [] [] d
+
+-- | @dashes@ /(complex)/
+--
+-- The dashes type represents dashes, used for instance with cresc. and dim. marks.
+data Dashes = 
+      Dashes {
+          dashesType :: StartStop -- ^ /type/ attribute
+        , dashesNumber :: (Maybe NumberLevel) -- ^ /number/ attribute
+        , dashesDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , dashesDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , dashesRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , dashesRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , dashesColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Dashes where
+    emitXml (Dashes a b c d e f g) =
+      XContent XEmpty
+        ([XAttr (QN "type" Nothing) (emitXml a)] ++
+        [maybe XEmpty (XAttr (QN "number" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) g])
+        []
+parseDashes :: P.XParse Dashes
+parseDashes = 
+      Dashes
+        <$> (P.xattr (P.name "type") >>= parseStartStop)
+        <*> P.optional (P.xattr (P.name "number") >>= parseNumberLevel)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'Dashes'
+mkDashes :: StartStop -> Dashes
+mkDashes a = Dashes a Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @defaults@ /(complex)/
+--
+-- The defaults type specifies score-wide defaults for scaling, layout, and appearance.
+data Defaults = 
+      Defaults {
+          defaultsScaling :: (Maybe Scaling) -- ^ /scaling/ child element
+        , defaultsLayout :: Layout
+        , defaultsAppearance :: (Maybe Appearance) -- ^ /appearance/ child element
+        , defaultsMusicFont :: (Maybe EmptyFont) -- ^ /music-font/ child element
+        , defaultsWordFont :: (Maybe EmptyFont) -- ^ /word-font/ child element
+        , defaultsLyricFont :: [LyricFont] -- ^ /lyric-font/ child element
+        , defaultsLyricLanguage :: [LyricLanguage] -- ^ /lyric-language/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Defaults where
+    emitXml (Defaults a b c d e f g) =
+      XContent XEmpty
+        []
+        ([maybe XEmpty (XElement (QN "scaling" Nothing).emitXml) a] ++
+        [emitXml b] ++
+        [maybe XEmpty (XElement (QN "appearance" Nothing).emitXml) c] ++
+        [maybe XEmpty (XElement (QN "music-font" Nothing).emitXml) d] ++
+        [maybe XEmpty (XElement (QN "word-font" Nothing).emitXml) e] ++
+        map (XElement (QN "lyric-font" Nothing).emitXml) f ++
+        map (XElement (QN "lyric-language" Nothing).emitXml) g)
+parseDefaults :: P.XParse Defaults
+parseDefaults = 
+      Defaults
+        <$> P.optional (P.xchild (P.name "scaling") (parseScaling))
+        <*> parseLayout
+        <*> P.optional (P.xchild (P.name "appearance") (parseAppearance))
+        <*> P.optional (P.xchild (P.name "music-font") (parseEmptyFont))
+        <*> P.optional (P.xchild (P.name "word-font") (parseEmptyFont))
+        <*> P.many (P.xchild (P.name "lyric-font") (parseLyricFont))
+        <*> P.many (P.xchild (P.name "lyric-language") (parseLyricLanguage))
+
+-- | Smart constructor for 'Defaults'
+mkDefaults :: Layout -> Defaults
+mkDefaults b = Defaults Nothing b Nothing Nothing Nothing [] []
+
+-- | @degree@ /(complex)/
+--
+-- The degree type is used to add, alter, or subtract individual notes in the chord. The print-object attribute can be used to keep the degree from printing separately when it has already taken into account in the text attribute of the kind element. The degree-value and degree-type text attributes specify how the value and type of the degree should be displayed.
+-- 	
+-- A harmony of kind "other" can be spelled explicitly by using a series of degree elements together with a root.
+data Degree = 
+      Degree {
+          degreePrintObject :: (Maybe YesNo) -- ^ /print-object/ attribute
+        , degreeDegreeValue :: DegreeValue -- ^ /degree-value/ child element
+        , degreeDegreeAlter :: DegreeAlter -- ^ /degree-alter/ child element
+        , degreeDegreeType :: DegreeType -- ^ /degree-type/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Degree where
+    emitXml (Degree a b c d) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "print-object" Nothing).emitXml) a])
+        ([XElement (QN "degree-value" Nothing) (emitXml b)] ++
+        [XElement (QN "degree-alter" Nothing) (emitXml c)] ++
+        [XElement (QN "degree-type" Nothing) (emitXml d)])
+parseDegree :: P.XParse Degree
+parseDegree = 
+      Degree
+        <$> P.optional (P.xattr (P.name "print-object") >>= parseYesNo)
+        <*> (P.xchild (P.name "degree-value") (parseDegreeValue))
+        <*> (P.xchild (P.name "degree-alter") (parseDegreeAlter))
+        <*> (P.xchild (P.name "degree-type") (parseDegreeType))
+
+-- | Smart constructor for 'Degree'
+mkDegree :: DegreeValue -> DegreeAlter -> DegreeType -> Degree
+mkDegree b c d = Degree Nothing b c d
+
+-- | @degree-alter@ /(complex)/
+--
+-- The degree-alter type represents the chromatic alteration for the current degree. If the degree-type value is alter or subtract, the degree-alter value is relative to the degree already in the chord based on its kind element. If the degree-type value is add, the degree-alter is relative to a dominant chord (major and perfect intervals except for a minor seventh). The plus-minus attribute is used to indicate if plus and minus symbols should be used instead of sharp and flat symbols to display the degree alteration; it is no by default.
+data DegreeAlter = 
+      DegreeAlter {
+          degreeAlterSemitones :: Semitones -- ^ text content
+        , degreeAlterPlusMinus :: (Maybe YesNo) -- ^ /plus-minus/ attribute
+        , degreeAlterDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , degreeAlterDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , degreeAlterRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , degreeAlterRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , degreeAlterFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , degreeAlterFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , degreeAlterFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , degreeAlterFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , degreeAlterColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml DegreeAlter where
+    emitXml (DegreeAlter a b c d e f g h i j k) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "plus-minus" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) k])
+        []
+parseDegreeAlter :: P.XParse DegreeAlter
+parseDegreeAlter = 
+      DegreeAlter
+        <$> (P.xtext >>= parseSemitones)
+        <*> P.optional (P.xattr (P.name "plus-minus") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'DegreeAlter'
+mkDegreeAlter :: Semitones -> DegreeAlter
+mkDegreeAlter a = DegreeAlter a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @degree-type@ /(complex)/
+--
+-- The degree-type type indicates if this degree is an addition, alteration, or subtraction relative to the kind of the current chord. The value of the degree-type element affects the interpretation of the value of the degree-alter element. The text attribute specifies how the type of the degree should be displayed.
+data DegreeType = 
+      DegreeType {
+          degreeTypeDegreeTypeValue :: DegreeTypeValue -- ^ text content
+        , degreeTypeText :: (Maybe Token) -- ^ /text/ attribute
+        , degreeTypeDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , degreeTypeDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , degreeTypeRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , degreeTypeRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , degreeTypeFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , degreeTypeFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , degreeTypeFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , degreeTypeFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , degreeTypeColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml DegreeType where
+    emitXml (DegreeType a b c d e f g h i j k) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "text" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) k])
+        []
+parseDegreeType :: P.XParse DegreeType
+parseDegreeType = 
+      DegreeType
+        <$> (P.xtext >>= parseDegreeTypeValue)
+        <*> P.optional (P.xattr (P.name "text") >>= parseToken)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'DegreeType'
+mkDegreeType :: DegreeTypeValue -> DegreeType
+mkDegreeType a = DegreeType a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @degree-value@ /(complex)/
+--
+-- The content of the degree-value type is a number indicating the degree of the chord (1 for the root, 3 for third, etc). The text attribute specifies how the type of the degree should be displayed.
+data DegreeValue = 
+      DegreeValue {
+          degreeValuePositiveInteger :: PositiveInteger -- ^ text content
+        , degreeValueText :: (Maybe Token) -- ^ /text/ attribute
+        , degreeValueDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , degreeValueDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , degreeValueRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , degreeValueRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , degreeValueFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , degreeValueFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , degreeValueFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , degreeValueFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , degreeValueColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml DegreeValue where
+    emitXml (DegreeValue a b c d e f g h i j k) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "text" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) k])
+        []
+parseDegreeValue :: P.XParse DegreeValue
+parseDegreeValue = 
+      DegreeValue
+        <$> (P.xtext >>= parsePositiveInteger)
+        <*> P.optional (P.xattr (P.name "text") >>= parseToken)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'DegreeValue'
+mkDegreeValue :: PositiveInteger -> DegreeValue
+mkDegreeValue a = DegreeValue a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @direction@ /(complex)/
+--
+-- A direction is a musical indication that is not attached to a specific note. Two or more may be combined to indicate starts and stops of wedges, dashes, etc.
+-- 	
+-- By default, a series of direction-type elements and a series of child elements of a direction-type within a single direction element follow one another in sequence visually. For a series of direction-type children, non-positional formatting attributes are carried over from the previous element by default.
+data Direction = 
+      Direction {
+          directionPlacement :: (Maybe AboveBelow) -- ^ /placement/ attribute
+        , directionDirective :: (Maybe YesNo) -- ^ /directive/ attribute
+        , directionDirectionType :: [DirectionType] -- ^ /direction-type/ child element
+        , directionOffset :: (Maybe Offset) -- ^ /offset/ child element
+        , directionEditorialVoiceDirection :: EditorialVoiceDirection
+        , directionStaff :: (Maybe Staff)
+        , directionSound :: (Maybe Sound) -- ^ /sound/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Direction where
+    emitXml (Direction a b c d e f g) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "placement" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "directive" Nothing).emitXml) b])
+        (map (XElement (QN "direction-type" Nothing).emitXml) c ++
+        [maybe XEmpty (XElement (QN "offset" Nothing).emitXml) d] ++
+        [emitXml e] ++
+        [emitXml f] ++
+        [maybe XEmpty (XElement (QN "sound" Nothing).emitXml) g])
+parseDirection :: P.XParse Direction
+parseDirection = 
+      Direction
+        <$> P.optional (P.xattr (P.name "placement") >>= parseAboveBelow)
+        <*> P.optional (P.xattr (P.name "directive") >>= parseYesNo)
+        <*> P.many (P.xchild (P.name "direction-type") (parseDirectionType))
+        <*> P.optional (P.xchild (P.name "offset") (parseOffset))
+        <*> parseEditorialVoiceDirection
+        <*> P.optional (parseStaff)
+        <*> P.optional (P.xchild (P.name "sound") (parseSound))
+
+-- | Smart constructor for 'Direction'
+mkDirection :: EditorialVoiceDirection -> Direction
+mkDirection e = Direction Nothing Nothing [] Nothing e Nothing Nothing
+
+-- | @direction-type@ /(complex)/
+--
+-- Textual direction types may have more than 1 component due to multiple fonts. The dynamics element may also be used in the notations element. Attribute groups related to print suggestions apply to the individual direction-type, not to the overall direction.
+data DirectionType = 
+      DirectionType {
+          directionTypeDirectionType :: ChxDirectionType
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml DirectionType where
+    emitXml (DirectionType a) =
+      XReps [emitXml a]
+parseDirectionType :: P.XParse DirectionType
+parseDirectionType = 
+      DirectionType
+        <$> parseChxDirectionType
+
+-- | Smart constructor for 'DirectionType'
+mkDirectionType :: ChxDirectionType -> DirectionType
+mkDirectionType a = DirectionType a
+
+-- | @directive@ /(complex)/
+data Directive = 
+      Directive {
+          directiveString :: String -- ^ text content
+        , directiveLang :: (Maybe Lang) -- ^ /xml:lang/ attribute
+        , directiveDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , directiveDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , directiveRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , directiveRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , directiveFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , directiveFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , directiveFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , directiveFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , directiveColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Directive where
+    emitXml (Directive a b c d e f g h i j k) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "lang" (Just "xml")).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) k])
+        []
+parseDirective :: P.XParse Directive
+parseDirective = 
+      Directive
+        <$> (P.xtext >>= return)
+        <*> P.optional (P.xattr (P.name "xml:lang") >>= parseLang)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'Directive'
+mkDirective :: String -> Directive
+mkDirective a = Directive a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @display-step-octave@ /(complex)/
+--
+-- The display-step-octave type contains the sequence of elements used by both the rest and unpitched elements. This group is used to place rests and unpitched elements on the staff without implying that these elements have pitch. Positioning follows the current clef. If percussion clef is used, the display-step and display-octave elements are interpreted as if in treble clef, with a G in octave 4 on line 2. If not present, the note is placed on the middle line of the staff, generally used for one-line staffs.
+data DisplayStepOctave = 
+      DisplayStepOctave {
+          displayStepOctaveDisplayStepOctave :: (Maybe SeqDisplayStepOctave)
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml DisplayStepOctave where
+    emitXml (DisplayStepOctave a) =
+      XReps [emitXml a]
+parseDisplayStepOctave :: P.XParse DisplayStepOctave
+parseDisplayStepOctave = 
+      DisplayStepOctave
+        <$> P.optional (parseSeqDisplayStepOctave)
+
+-- | Smart constructor for 'DisplayStepOctave'
+mkDisplayStepOctave :: DisplayStepOctave
+mkDisplayStepOctave = DisplayStepOctave Nothing
+
+-- | @dynamics@ /(complex)/
+--
+-- Dynamics can be associated either with a note or a general musical direction. To avoid inconsistencies between and amongst the letter abbreviations for dynamics (what is sf vs. sfz, standing alone or with a trailing dynamic that is not always piano), we use the actual letters as the names of these dynamic elements. The other-dynamics element allows other dynamic marks that are not covered here, but many of those should perhaps be included in a more general musical direction element. Dynamics elements may also be combined to create marks not covered by a single element, such as sfmp.
+-- 	
+-- These letter dynamic symbols are separated from crescendo, decrescendo, and wedge indications. Dynamic representation is inconsistent in scores. Many things are assumed by the composer and left out, such as returns to original dynamics. Systematic representations are quite complex: for example, Humdrum has at least 3 representation formats related to dynamics. The MusicXML format captures what is in the score, but does not try to be optimal for analysis or synthesis of dynamics.
+data Dynamics = 
+      Dynamics {
+          dynamicsDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , dynamicsDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , dynamicsRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , dynamicsRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , dynamicsFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , dynamicsFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , dynamicsFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , dynamicsFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , dynamicsColor :: (Maybe Color) -- ^ /color/ attribute
+        , dynamicsPlacement :: (Maybe AboveBelow) -- ^ /placement/ attribute
+        , dynamicsDynamics :: [ChxDynamics]
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Dynamics where
+    emitXml (Dynamics a b c d e f g h i j k) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "placement" Nothing).emitXml) j])
+        ([emitXml k])
+parseDynamics :: P.XParse Dynamics
+parseDynamics = 
+      Dynamics
+        <$> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "placement") >>= parseAboveBelow)
+        <*> P.many (parseChxDynamics)
+
+-- | Smart constructor for 'Dynamics'
+mkDynamics :: Dynamics
+mkDynamics = Dynamics Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing []
+
+-- | @elision@ /(complex)/
+--
+-- In Version 2.0, the content of the elision type is used to specify the symbol used to display the elision. Common values are a no-break space (Unicode 00A0), an underscore (Unicode 005F), or an undertie (Unicode 203F).
+data Elision = 
+      Elision {
+          elisionString :: String -- ^ text content
+        , elisionFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , elisionFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , elisionFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , elisionFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , elisionColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Elision where
+    emitXml (Elision a b c d e f) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) f])
+        []
+parseElision :: P.XParse Elision
+parseElision = 
+      Elision
+        <$> (P.xtext >>= return)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'Elision'
+mkElision :: String -> Elision
+mkElision a = Elision a Nothing Nothing Nothing Nothing Nothing
+
+-- | @empty@ /(complex)/
+--
+-- The empty type represents an empty element with no attributes.
+data Empty = 
+      Empty
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Empty where
+    emitXml (Empty) =
+      XReps []
+parseEmpty :: P.XParse Empty
+parseEmpty = 
+      return Empty
+
+-- | Smart constructor for 'Empty'
+mkEmpty :: Empty
+mkEmpty = Empty 
+
+-- | @empty-font@ /(complex)/
+--
+-- The empty-font type represents an empty element with font attributes.
+data EmptyFont = 
+      EmptyFont {
+          emptyFontFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , emptyFontFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , emptyFontFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , emptyFontFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml EmptyFont where
+    emitXml (EmptyFont a b c d) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) d])
+        []
+parseEmptyFont :: P.XParse EmptyFont
+parseEmptyFont = 
+      EmptyFont
+        <$> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+
+-- | Smart constructor for 'EmptyFont'
+mkEmptyFont :: EmptyFont
+mkEmptyFont = EmptyFont Nothing Nothing Nothing Nothing
+
+-- | @empty-line@ /(complex)/
+--
+-- The empty-line type represents an empty element with line-shape, line-type, print-style and placement attributes.
+data EmptyLine = 
+      EmptyLine {
+          emptyLineLineShape :: (Maybe LineShape) -- ^ /line-shape/ attribute
+        , emptyLineLineType :: (Maybe LineType) -- ^ /line-type/ attribute
+        , emptyLineDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , emptyLineDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , emptyLineRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , emptyLineRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , emptyLineFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , emptyLineFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , emptyLineFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , emptyLineFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , emptyLineColor :: (Maybe Color) -- ^ /color/ attribute
+        , emptyLinePlacement :: (Maybe AboveBelow) -- ^ /placement/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml EmptyLine where
+    emitXml (EmptyLine a b c d e f g h i j k l) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "line-shape" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "line-type" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "placement" Nothing).emitXml) l])
+        []
+parseEmptyLine :: P.XParse EmptyLine
+parseEmptyLine = 
+      EmptyLine
+        <$> P.optional (P.xattr (P.name "line-shape") >>= parseLineShape)
+        <*> P.optional (P.xattr (P.name "line-type") >>= parseLineType)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "placement") >>= parseAboveBelow)
+
+-- | Smart constructor for 'EmptyLine'
+mkEmptyLine :: EmptyLine
+mkEmptyLine = EmptyLine Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @empty-placement@ /(complex)/
+--
+-- The empty-placement type represents an empty element with print-style and placement attributes.
+data EmptyPlacement = 
+      EmptyPlacement {
+          emptyPlacementDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , emptyPlacementDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , emptyPlacementRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , emptyPlacementRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , emptyPlacementFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , emptyPlacementFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , emptyPlacementFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , emptyPlacementFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , emptyPlacementColor :: (Maybe Color) -- ^ /color/ attribute
+        , emptyPlacementPlacement :: (Maybe AboveBelow) -- ^ /placement/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml EmptyPlacement where
+    emitXml (EmptyPlacement a b c d e f g h i j) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "placement" Nothing).emitXml) j])
+        []
+parseEmptyPlacement :: P.XParse EmptyPlacement
+parseEmptyPlacement = 
+      EmptyPlacement
+        <$> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "placement") >>= parseAboveBelow)
+
+-- | Smart constructor for 'EmptyPlacement'
+mkEmptyPlacement :: EmptyPlacement
+mkEmptyPlacement = EmptyPlacement Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @empty-print-style@ /(complex)/
+--
+-- The empty-print-style type represents an empty element with print-style attributes.
+data EmptyPrintStyle = 
+      EmptyPrintStyle {
+          emptyPrintStyleDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , emptyPrintStyleDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , emptyPrintStyleRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , emptyPrintStyleRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , emptyPrintStyleFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , emptyPrintStyleFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , emptyPrintStyleFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , emptyPrintStyleFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , emptyPrintStyleColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml EmptyPrintStyle where
+    emitXml (EmptyPrintStyle a b c d e f g h i) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) i])
+        []
+parseEmptyPrintStyle :: P.XParse EmptyPrintStyle
+parseEmptyPrintStyle = 
+      EmptyPrintStyle
+        <$> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'EmptyPrintStyle'
+mkEmptyPrintStyle :: EmptyPrintStyle
+mkEmptyPrintStyle = EmptyPrintStyle Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @empty-trill-sound@ /(complex)/
+--
+-- The empty-trill-sound type represents an empty element with print-style, placement, and trill-sound attributes.
+data EmptyTrillSound = 
+      EmptyTrillSound {
+          emptyTrillSoundDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , emptyTrillSoundDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , emptyTrillSoundRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , emptyTrillSoundRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , emptyTrillSoundFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , emptyTrillSoundFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , emptyTrillSoundFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , emptyTrillSoundFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , emptyTrillSoundColor :: (Maybe Color) -- ^ /color/ attribute
+        , emptyTrillSoundPlacement :: (Maybe AboveBelow) -- ^ /placement/ attribute
+        , emptyTrillSoundStartNote :: (Maybe StartNote) -- ^ /start-note/ attribute
+        , emptyTrillSoundTrillStep :: (Maybe TrillStep) -- ^ /trill-step/ attribute
+        , emptyTrillSoundTwoNoteTurn :: (Maybe TwoNoteTurn) -- ^ /two-note-turn/ attribute
+        , emptyTrillSoundAccelerate :: (Maybe YesNo) -- ^ /accelerate/ attribute
+        , emptyTrillSoundBeats :: (Maybe TrillBeats) -- ^ /beats/ attribute
+        , emptyTrillSoundSecondBeat :: (Maybe Percent) -- ^ /second-beat/ attribute
+        , emptyTrillSoundLastBeat :: (Maybe Percent) -- ^ /last-beat/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml EmptyTrillSound where
+    emitXml (EmptyTrillSound a b c d e f g h i j k l m n o p q) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "placement" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "start-note" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "trill-step" Nothing).emitXml) l] ++
+        [maybe XEmpty (XAttr (QN "two-note-turn" Nothing).emitXml) m] ++
+        [maybe XEmpty (XAttr (QN "accelerate" Nothing).emitXml) n] ++
+        [maybe XEmpty (XAttr (QN "beats" Nothing).emitXml) o] ++
+        [maybe XEmpty (XAttr (QN "second-beat" Nothing).emitXml) p] ++
+        [maybe XEmpty (XAttr (QN "last-beat" Nothing).emitXml) q])
+        []
+parseEmptyTrillSound :: P.XParse EmptyTrillSound
+parseEmptyTrillSound = 
+      EmptyTrillSound
+        <$> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "placement") >>= parseAboveBelow)
+        <*> P.optional (P.xattr (P.name "start-note") >>= parseStartNote)
+        <*> P.optional (P.xattr (P.name "trill-step") >>= parseTrillStep)
+        <*> P.optional (P.xattr (P.name "two-note-turn") >>= parseTwoNoteTurn)
+        <*> P.optional (P.xattr (P.name "accelerate") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "beats") >>= parseTrillBeats)
+        <*> P.optional (P.xattr (P.name "second-beat") >>= parsePercent)
+        <*> P.optional (P.xattr (P.name "last-beat") >>= parsePercent)
+
+-- | Smart constructor for 'EmptyTrillSound'
+mkEmptyTrillSound :: EmptyTrillSound
+mkEmptyTrillSound = EmptyTrillSound Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @encoding@ /(complex)/
+--
+-- The encoding element contains information about who did the digital encoding, when, with what software, and in what aspects. Standard type values for the encoder element are music, words, and arrangement, but other types may be used. The type attribute is only needed when there are multiple encoder elements.
+data Encoding = 
+      Encoding {
+          encodingEncoding :: [ChxEncoding]
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Encoding where
+    emitXml (Encoding a) =
+      XReps [emitXml a]
+parseEncoding :: P.XParse Encoding
+parseEncoding = 
+      Encoding
+        <$> P.many (parseChxEncoding)
+
+-- | Smart constructor for 'Encoding'
+mkEncoding :: Encoding
+mkEncoding = Encoding []
+
+-- | @ending@ /(complex)/
+--
+-- The ending type represents multiple (e.g. first and second) endings. Typically, the start type is associated with the left barline of the first measure in an ending. The stop and discontinue types are associated with the right barline of the last measure in an ending. Stop is used when the ending mark concludes with a downward jog, as is typical for first endings. Discontinue is used when there is no downward jog, as is typical for second endings that do not conclude a piece. The length of the jog can be specified using the end-length attribute. The text-x and text-y attributes are offsets that specify where the baseline of the start of the ending text appears, relative to the start of the ending line.
+-- 	
+-- The number attribute reflects the numeric values of what is under the ending line. Single endings such as "1" or comma-separated multiple endings such as "1,2" may be used. The ending element text is used when the text displayed in the ending is different than what appears in the number attribute. The print-object element is used to indicate when an ending is present but not printed, as is often the case for many parts in a full score.
+data Ending = 
+      Ending {
+          endingString :: String -- ^ text content
+        , cmpendingNumber :: EndingNumber -- ^ /number/ attribute
+        , endingType :: StartStopDiscontinue -- ^ /type/ attribute
+        , endingEndLength :: (Maybe Tenths) -- ^ /end-length/ attribute
+        , endingTextX :: (Maybe Tenths) -- ^ /text-x/ attribute
+        , endingTextY :: (Maybe Tenths) -- ^ /text-y/ attribute
+        , endingPrintObject :: (Maybe YesNo) -- ^ /print-object/ attribute
+        , endingDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , endingDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , endingRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , endingRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , endingFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , endingFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , endingFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , endingFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , endingColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Ending where
+    emitXml (Ending a b c d e f g h i j k l m n o p) =
+      XContent (emitXml a)
+        ([XAttr (QN "number" Nothing) (emitXml b)] ++
+        [XAttr (QN "type" Nothing) (emitXml c)] ++
+        [maybe XEmpty (XAttr (QN "end-length" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "text-x" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "text-y" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "print-object" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) l] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) m] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) n] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) o] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) p])
+        []
+parseEnding :: P.XParse Ending
+parseEnding = 
+      Ending
+        <$> (P.xtext >>= return)
+        <*> (P.xattr (P.name "number") >>= parseEndingNumber)
+        <*> (P.xattr (P.name "type") >>= parseStartStopDiscontinue)
+        <*> P.optional (P.xattr (P.name "end-length") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "text-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "text-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "print-object") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'Ending'
+mkEnding :: String -> EndingNumber -> StartStopDiscontinue -> Ending
+mkEnding a b c = Ending a b c Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @extend@ /(complex)/
+--
+-- The extend type represents word extensions for lyrics.
+data Extend = 
+      Extend {
+          extendFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , extendFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , extendFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , extendFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , extendColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Extend where
+    emitXml (Extend a b c d e) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) e])
+        []
+parseExtend :: P.XParse Extend
+parseExtend = 
+      Extend
+        <$> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'Extend'
+mkExtend :: Extend
+mkExtend = Extend Nothing Nothing Nothing Nothing Nothing
+
+-- | @feature@ /(complex)/
+--
+-- The feature type is a part of the grouping element used for musical analysis. The type attribute represents the type of the feature and the element content represents its value. This type is flexible to allow for different analyses.
+data Feature = 
+      Feature {
+          featureString :: String -- ^ text content
+        , featureType :: (Maybe Token) -- ^ /type/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Feature where
+    emitXml (Feature a b) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "type" Nothing).emitXml) b])
+        []
+parseFeature :: P.XParse Feature
+parseFeature = 
+      Feature
+        <$> (P.xtext >>= return)
+        <*> P.optional (P.xattr (P.name "type") >>= parseToken)
+
+-- | Smart constructor for 'Feature'
+mkFeature :: String -> Feature
+mkFeature a = Feature a Nothing
+
+-- | @fermata@ /(complex)/
+--
+-- The fermata text content represents the shape of the fermata sign. An empty fermata element represents a normal fermata. The fermata type is upright if not specified.
+data Fermata = 
+      Fermata {
+          fermataFermataShape :: FermataShape -- ^ text content
+        , fermataType :: (Maybe UprightInverted) -- ^ /type/ attribute
+        , fermataDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , fermataDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , fermataRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , fermataRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , fermataFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , fermataFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , fermataFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , fermataFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , fermataColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Fermata where
+    emitXml (Fermata a b c d e f g h i j k) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "type" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) k])
+        []
+parseFermata :: P.XParse Fermata
+parseFermata = 
+      Fermata
+        <$> (P.xtext >>= parseFermataShape)
+        <*> P.optional (P.xattr (P.name "type") >>= parseUprightInverted)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'Fermata'
+mkFermata :: FermataShape -> Fermata
+mkFermata a = Fermata a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @figure@ /(complex)/
+--
+-- The figure type represents a single figure within a figured-bass element.
+data Figure = 
+      Figure {
+          figurePrefix :: (Maybe StyleText) -- ^ /prefix/ child element
+        , figureFigureNumber :: (Maybe StyleText) -- ^ /figure-number/ child element
+        , figureSuffix :: (Maybe StyleText) -- ^ /suffix/ child element
+        , figureExtend :: (Maybe Extend) -- ^ /extend/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Figure where
+    emitXml (Figure a b c d) =
+      XContent XEmpty
+        []
+        ([maybe XEmpty (XElement (QN "prefix" Nothing).emitXml) a] ++
+        [maybe XEmpty (XElement (QN "figure-number" Nothing).emitXml) b] ++
+        [maybe XEmpty (XElement (QN "suffix" Nothing).emitXml) c] ++
+        [maybe XEmpty (XElement (QN "extend" Nothing).emitXml) d])
+parseFigure :: P.XParse Figure
+parseFigure = 
+      Figure
+        <$> P.optional (P.xchild (P.name "prefix") (parseStyleText))
+        <*> P.optional (P.xchild (P.name "figure-number") (parseStyleText))
+        <*> P.optional (P.xchild (P.name "suffix") (parseStyleText))
+        <*> P.optional (P.xchild (P.name "extend") (parseExtend))
+
+-- | Smart constructor for 'Figure'
+mkFigure :: Figure
+mkFigure = Figure Nothing Nothing Nothing Nothing
+
+-- | @figured-bass@ /(complex)/
+--
+-- The figured-bass element represents figured bass notation. Figured bass elements take their position from the first regular note that follows. Figures are ordered from top to bottom. The value of parentheses is "no" if not present.
+data FiguredBass = 
+      FiguredBass {
+          figuredBassParentheses :: (Maybe YesNo) -- ^ /parentheses/ attribute
+        , figuredBassDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , figuredBassDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , figuredBassRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , figuredBassRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , figuredBassFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , figuredBassFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , figuredBassFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , figuredBassFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , figuredBassColor :: (Maybe Color) -- ^ /color/ attribute
+        , figuredBassPrintDot :: (Maybe YesNo) -- ^ /print-dot/ attribute
+        , figuredBassPrintLyric :: (Maybe YesNo) -- ^ /print-lyric/ attribute
+        , figuredBassPrintObject :: (Maybe YesNo) -- ^ /print-object/ attribute
+        , figuredBassPrintSpacing :: (Maybe YesNo) -- ^ /print-spacing/ attribute
+        , figuredBassFigure :: [Figure] -- ^ /figure/ child element
+        , figuredBassDuration :: (Maybe Duration)
+        , figuredBassEditorial :: Editorial
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml FiguredBass where
+    emitXml (FiguredBass a b c d e f g h i j k l m n o p q) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "parentheses" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "print-dot" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "print-lyric" Nothing).emitXml) l] ++
+        [maybe XEmpty (XAttr (QN "print-object" Nothing).emitXml) m] ++
+        [maybe XEmpty (XAttr (QN "print-spacing" Nothing).emitXml) n])
+        (map (XElement (QN "figure" Nothing).emitXml) o ++
+        [emitXml p] ++
+        [emitXml q])
+parseFiguredBass :: P.XParse FiguredBass
+parseFiguredBass = 
+      FiguredBass
+        <$> P.optional (P.xattr (P.name "parentheses") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "print-dot") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "print-lyric") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "print-object") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "print-spacing") >>= parseYesNo)
+        <*> P.many (P.xchild (P.name "figure") (parseFigure))
+        <*> P.optional (parseDuration)
+        <*> parseEditorial
+
+-- | Smart constructor for 'FiguredBass'
+mkFiguredBass :: Editorial -> FiguredBass
+mkFiguredBass q = FiguredBass Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing [] Nothing q
+
+-- | @fingering@ /(complex)/
+--
+-- Fingering is typically indicated 1,2,3,4,5. Multiple fingerings may be given, typically to substitute fingerings in the middle of a note. The substitution and alternate values are "no" if the attribute is not present. For guitar and other fretted instruments, the fingering element represents the fretting finger; the pluck element represents the plucking finger.
+data Fingering = 
+      Fingering {
+          fingeringString :: String -- ^ text content
+        , fingeringSubstitution :: (Maybe YesNo) -- ^ /substitution/ attribute
+        , fingeringAlternate :: (Maybe YesNo) -- ^ /alternate/ attribute
+        , fingeringDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , fingeringDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , fingeringRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , fingeringRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , fingeringFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , fingeringFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , fingeringFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , fingeringFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , fingeringColor :: (Maybe Color) -- ^ /color/ attribute
+        , fingeringPlacement :: (Maybe AboveBelow) -- ^ /placement/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Fingering where
+    emitXml (Fingering a b c d e f g h i j k l m) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "substitution" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "alternate" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) l] ++
+        [maybe XEmpty (XAttr (QN "placement" Nothing).emitXml) m])
+        []
+parseFingering :: P.XParse Fingering
+parseFingering = 
+      Fingering
+        <$> (P.xtext >>= return)
+        <*> P.optional (P.xattr (P.name "substitution") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "alternate") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "placement") >>= parseAboveBelow)
+
+-- | Smart constructor for 'Fingering'
+mkFingering :: String -> Fingering
+mkFingering a = Fingering a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @first-fret@ /(complex)/
+--
+-- The first-fret type indicates which fret is shown in the top space of the frame; it is fret 1 if the element is not present. The optional text attribute indicates how this is represented in the fret diagram, while the location attribute indicates whether the text appears to the left or right of the frame.
+data FirstFret = 
+      FirstFret {
+          firstFretPositiveInteger :: PositiveInteger -- ^ text content
+        , firstFretText :: (Maybe Token) -- ^ /text/ attribute
+        , firstFretLocation :: (Maybe LeftRight) -- ^ /location/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml FirstFret where
+    emitXml (FirstFret a b c) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "text" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "location" Nothing).emitXml) c])
+        []
+parseFirstFret :: P.XParse FirstFret
+parseFirstFret = 
+      FirstFret
+        <$> (P.xtext >>= parsePositiveInteger)
+        <*> P.optional (P.xattr (P.name "text") >>= parseToken)
+        <*> P.optional (P.xattr (P.name "location") >>= parseLeftRight)
+
+-- | Smart constructor for 'FirstFret'
+mkFirstFret :: PositiveInteger -> FirstFret
+mkFirstFret a = FirstFret a Nothing Nothing
+
+-- | @formatted-text@ /(complex)/
+--
+-- The formatted-text type represents a text element with text-formatting attributes.
+data FormattedText = 
+      FormattedText {
+          formattedTextString :: String -- ^ text content
+        , formattedTextLang :: (Maybe Lang) -- ^ /xml:lang/ attribute
+        , formattedTextEnclosure :: (Maybe Enclosure) -- ^ /enclosure/ attribute
+        , formattedTextJustify :: (Maybe LeftCenterRight) -- ^ /justify/ attribute
+        , formattedTextHalign :: (Maybe LeftCenterRight) -- ^ /halign/ attribute
+        , formattedTextValign :: (Maybe Valign) -- ^ /valign/ attribute
+        , formattedTextDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , formattedTextDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , formattedTextRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , formattedTextRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , formattedTextFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , formattedTextFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , formattedTextFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , formattedTextFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , formattedTextColor :: (Maybe Color) -- ^ /color/ attribute
+        , formattedTextUnderline :: (Maybe NumberOfLines) -- ^ /underline/ attribute
+        , formattedTextOverline :: (Maybe NumberOfLines) -- ^ /overline/ attribute
+        , formattedTextLineThrough :: (Maybe NumberOfLines) -- ^ /line-through/ attribute
+        , formattedTextRotation :: (Maybe RotationDegrees) -- ^ /rotation/ attribute
+        , formattedTextLetterSpacing :: (Maybe NumberOrNormal) -- ^ /letter-spacing/ attribute
+        , formattedTextLineHeight :: (Maybe NumberOrNormal) -- ^ /line-height/ attribute
+        , formattedTextDir :: (Maybe TextDirection) -- ^ /dir/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml FormattedText where
+    emitXml (FormattedText a b c d e f g h i j k l m n o p q r s t u v) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "lang" (Just "xml")).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "enclosure" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "justify" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "halign" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "valign" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) l] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) m] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) n] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) o] ++
+        [maybe XEmpty (XAttr (QN "underline" Nothing).emitXml) p] ++
+        [maybe XEmpty (XAttr (QN "overline" Nothing).emitXml) q] ++
+        [maybe XEmpty (XAttr (QN "line-through" Nothing).emitXml) r] ++
+        [maybe XEmpty (XAttr (QN "rotation" Nothing).emitXml) s] ++
+        [maybe XEmpty (XAttr (QN "letter-spacing" Nothing).emitXml) t] ++
+        [maybe XEmpty (XAttr (QN "line-height" Nothing).emitXml) u] ++
+        [maybe XEmpty (XAttr (QN "dir" Nothing).emitXml) v])
+        []
+parseFormattedText :: P.XParse FormattedText
+parseFormattedText = 
+      FormattedText
+        <$> (P.xtext >>= return)
+        <*> P.optional (P.xattr (P.name "xml:lang") >>= parseLang)
+        <*> P.optional (P.xattr (P.name "enclosure") >>= parseEnclosure)
+        <*> P.optional (P.xattr (P.name "justify") >>= parseLeftCenterRight)
+        <*> P.optional (P.xattr (P.name "halign") >>= parseLeftCenterRight)
+        <*> P.optional (P.xattr (P.name "valign") >>= parseValign)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "underline") >>= parseNumberOfLines)
+        <*> P.optional (P.xattr (P.name "overline") >>= parseNumberOfLines)
+        <*> P.optional (P.xattr (P.name "line-through") >>= parseNumberOfLines)
+        <*> P.optional (P.xattr (P.name "rotation") >>= parseRotationDegrees)
+        <*> P.optional (P.xattr (P.name "letter-spacing") >>= parseNumberOrNormal)
+        <*> P.optional (P.xattr (P.name "line-height") >>= parseNumberOrNormal)
+        <*> P.optional (P.xattr (P.name "dir") >>= parseTextDirection)
+
+-- | Smart constructor for 'FormattedText'
+mkFormattedText :: String -> FormattedText
+mkFormattedText a = FormattedText a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @forward@ /(complex)/
+--
+-- The backup and forward elements are required to coordinate multiple voices in one part, including music on multiple staves. The forward element is generally used within voices and staves. Duration values should always be positive, and should not cross measure boundaries.
+data Forward = 
+      Forward {
+          forwardDuration :: Duration
+        , forwardEditorialVoice :: EditorialVoice
+        , forwardStaff :: (Maybe Staff)
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Forward where
+    emitXml (Forward a b c) =
+      XReps [emitXml a,emitXml b,emitXml c]
+parseForward :: P.XParse Forward
+parseForward = 
+      Forward
+        <$> parseDuration
+        <*> parseEditorialVoice
+        <*> P.optional (parseStaff)
+
+-- | Smart constructor for 'Forward'
+mkForward :: Duration -> EditorialVoice -> Forward
+mkForward a b = Forward a b Nothing
+
+-- | @frame@ /(complex)/
+--
+-- The frame type represents a frame or fretboard diagram used together with a chord symbol. The representation is based on the NIFF guitar grid with additional information.
+data Frame = 
+      Frame {
+          frameHeight :: (Maybe Tenths) -- ^ /height/ attribute
+        , frameWidth :: (Maybe Tenths) -- ^ /width/ attribute
+        , frameDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , frameDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , frameRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , frameRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , frameColor :: (Maybe Color) -- ^ /color/ attribute
+        , frameHalign :: (Maybe LeftCenterRight) -- ^ /halign/ attribute
+        , frameValign :: (Maybe Valign) -- ^ /valign/ attribute
+        , frameFrameStrings :: PositiveInteger -- ^ /frame-strings/ child element
+        , frameFrameFrets :: PositiveInteger -- ^ /frame-frets/ child element
+        , frameFirstFret :: (Maybe FirstFret) -- ^ /first-fret/ child element
+        , frameFrameNote :: [FrameNote] -- ^ /frame-note/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Frame where
+    emitXml (Frame a b c d e f g h i j k l m) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "height" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "width" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "halign" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "valign" Nothing).emitXml) i])
+        ([XElement (QN "frame-strings" Nothing) (emitXml j)] ++
+        [XElement (QN "frame-frets" Nothing) (emitXml k)] ++
+        [maybe XEmpty (XElement (QN "first-fret" Nothing).emitXml) l] ++
+        map (XElement (QN "frame-note" Nothing).emitXml) m)
+parseFrame :: P.XParse Frame
+parseFrame = 
+      Frame
+        <$> P.optional (P.xattr (P.name "height") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "width") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "halign") >>= parseLeftCenterRight)
+        <*> P.optional (P.xattr (P.name "valign") >>= parseValign)
+        <*> (P.xchild (P.name "frame-strings") (P.xtext >>= parsePositiveInteger))
+        <*> (P.xchild (P.name "frame-frets") (P.xtext >>= parsePositiveInteger))
+        <*> P.optional (P.xchild (P.name "first-fret") (parseFirstFret))
+        <*> P.many (P.xchild (P.name "frame-note") (parseFrameNote))
+
+-- | Smart constructor for 'Frame'
+mkFrame :: PositiveInteger -> PositiveInteger -> Frame
+mkFrame j k = Frame Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing j k Nothing []
+
+-- | @frame-note@ /(complex)/
+--
+-- The frame-note type represents each note included in the frame. An open string will have a fret value of 0, while a muted string will not be associated with a frame-note element.
+data FrameNote = 
+      FrameNote {
+          frameNoteString :: CmpString -- ^ /string/ child element
+        , frameNoteFret :: Fret -- ^ /fret/ child element
+        , frameNoteFingering :: (Maybe Fingering) -- ^ /fingering/ child element
+        , frameNoteBarre :: (Maybe Barre) -- ^ /barre/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml FrameNote where
+    emitXml (FrameNote a b c d) =
+      XContent XEmpty
+        []
+        ([XElement (QN "string" Nothing) (emitXml a)] ++
+        [XElement (QN "fret" Nothing) (emitXml b)] ++
+        [maybe XEmpty (XElement (QN "fingering" Nothing).emitXml) c] ++
+        [maybe XEmpty (XElement (QN "barre" Nothing).emitXml) d])
+parseFrameNote :: P.XParse FrameNote
+parseFrameNote = 
+      FrameNote
+        <$> (P.xchild (P.name "string") (parseCmpString))
+        <*> (P.xchild (P.name "fret") (parseFret))
+        <*> P.optional (P.xchild (P.name "fingering") (parseFingering))
+        <*> P.optional (P.xchild (P.name "barre") (parseBarre))
+
+-- | Smart constructor for 'FrameNote'
+mkFrameNote :: CmpString -> Fret -> FrameNote
+mkFrameNote a b = FrameNote a b Nothing Nothing
+
+-- | @fret@ /(complex)/
+--
+-- The fret element is used with tablature notation and chord diagrams. Fret numbers start with 0 for an open string and 1 for the first fret.
+data Fret = 
+      Fret {
+          fretNonNegativeInteger :: NonNegativeInteger -- ^ text content
+        , fretFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , fretFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , fretFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , fretFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , fretColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Fret where
+    emitXml (Fret a b c d e f) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) f])
+        []
+parseFret :: P.XParse Fret
+parseFret = 
+      Fret
+        <$> (P.xtext >>= parseNonNegativeInteger)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'Fret'
+mkFret :: NonNegativeInteger -> Fret
+mkFret a = Fret a Nothing Nothing Nothing Nothing Nothing
+
+-- | @glissando@ /(complex)/
+--
+-- Glissando and slide types both indicate rapidly moving from one pitch to the other so that individual notes are not discerned. The distinction is similar to that between NIFF's glissando and portamento elements. A glissando sounds the half notes in between the slide and defaults to a wavy line. The optional text is printed alongside the line.
+data Glissando = 
+      Glissando {
+          glissandoString :: String -- ^ text content
+        , glissandoType :: StartStop -- ^ /type/ attribute
+        , glissandoNumber :: (Maybe NumberLevel) -- ^ /number/ attribute
+        , glissandoLineType :: (Maybe LineType) -- ^ /line-type/ attribute
+        , glissandoDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , glissandoDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , glissandoRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , glissandoRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , glissandoFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , glissandoFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , glissandoFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , glissandoFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , glissandoColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Glissando where
+    emitXml (Glissando a b c d e f g h i j k l m) =
+      XContent (emitXml a)
+        ([XAttr (QN "type" Nothing) (emitXml b)] ++
+        [maybe XEmpty (XAttr (QN "number" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "line-type" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) l] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) m])
+        []
+parseGlissando :: P.XParse Glissando
+parseGlissando = 
+      Glissando
+        <$> (P.xtext >>= return)
+        <*> (P.xattr (P.name "type") >>= parseStartStop)
+        <*> P.optional (P.xattr (P.name "number") >>= parseNumberLevel)
+        <*> P.optional (P.xattr (P.name "line-type") >>= parseLineType)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'Glissando'
+mkGlissando :: String -> StartStop -> Glissando
+mkGlissando a b = Glissando a b Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @grace@ /(complex)/
+--
+-- The grace type indicates the presence of a grace note. The slash attribute for a grace note is yes for slashed eighth notes. The other grace note attributes come from MuseData sound suggestions. Steal-time-previous indicates the percentage of time to steal from the previous note for the grace note. Steal-time-following indicates the percentage of time to steal from the following note for the grace note. Make-time indicates to make time, not steal time; the units are in real-time divisions for the grace note.
+data Grace = 
+      Grace {
+          graceStealTimePrevious :: (Maybe Percent) -- ^ /steal-time-previous/ attribute
+        , graceStealTimeFollowing :: (Maybe Percent) -- ^ /steal-time-following/ attribute
+        , graceMakeTime :: (Maybe Divisions) -- ^ /make-time/ attribute
+        , graceSlash :: (Maybe YesNo) -- ^ /slash/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Grace where
+    emitXml (Grace a b c d) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "steal-time-previous" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "steal-time-following" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "make-time" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "slash" Nothing).emitXml) d])
+        []
+parseGrace :: P.XParse Grace
+parseGrace = 
+      Grace
+        <$> P.optional (P.xattr (P.name "steal-time-previous") >>= parsePercent)
+        <*> P.optional (P.xattr (P.name "steal-time-following") >>= parsePercent)
+        <*> P.optional (P.xattr (P.name "make-time") >>= parseDivisions)
+        <*> P.optional (P.xattr (P.name "slash") >>= parseYesNo)
+
+-- | Smart constructor for 'Grace'
+mkGrace :: Grace
+mkGrace = Grace Nothing Nothing Nothing Nothing
+
+-- | @group-barline@ /(complex)/
+--
+-- The group-barline type indicates if the group should have common barlines.
+data GroupBarline = 
+      GroupBarline {
+          groupBarlineGroupBarlineValue :: GroupBarlineValue -- ^ text content
+        , groupBarlineColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml GroupBarline where
+    emitXml (GroupBarline a b) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "color" Nothing).emitXml) b])
+        []
+parseGroupBarline :: P.XParse GroupBarline
+parseGroupBarline = 
+      GroupBarline
+        <$> (P.xtext >>= parseGroupBarlineValue)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'GroupBarline'
+mkGroupBarline :: GroupBarlineValue -> GroupBarline
+mkGroupBarline a = GroupBarline a Nothing
+
+-- | @group-name@ /(complex)/
+--
+-- The group-name type describes the name or abbreviation of a part-group element. Formatting attributes in the group-name type are deprecated in Version 2.0 in favor of the new group-name-display and group-abbreviation-display elements.
+data GroupName = 
+      GroupName {
+          groupNameString :: String -- ^ text content
+        , groupNameDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , groupNameDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , groupNameRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , groupNameRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , groupNameFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , groupNameFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , groupNameFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , groupNameFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , groupNameColor :: (Maybe Color) -- ^ /color/ attribute
+        , groupNameJustify :: (Maybe LeftCenterRight) -- ^ /justify/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml GroupName where
+    emitXml (GroupName a b c d e f g h i j k) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "justify" Nothing).emitXml) k])
+        []
+parseGroupName :: P.XParse GroupName
+parseGroupName = 
+      GroupName
+        <$> (P.xtext >>= return)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "justify") >>= parseLeftCenterRight)
+
+-- | Smart constructor for 'GroupName'
+mkGroupName :: String -> GroupName
+mkGroupName a = GroupName a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @group-symbol@ /(complex)/
+--
+-- The group-symbol type indicates how the symbol for a group is indicated in the score.
+data GroupSymbol = 
+      GroupSymbol {
+          groupSymbolGroupSymbolValue :: GroupSymbolValue -- ^ text content
+        , groupSymbolDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , groupSymbolDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , groupSymbolRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , groupSymbolRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , groupSymbolColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml GroupSymbol where
+    emitXml (GroupSymbol a b c d e f) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) f])
+        []
+parseGroupSymbol :: P.XParse GroupSymbol
+parseGroupSymbol = 
+      GroupSymbol
+        <$> (P.xtext >>= parseGroupSymbolValue)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'GroupSymbol'
+mkGroupSymbol :: GroupSymbolValue -> GroupSymbol
+mkGroupSymbol a = GroupSymbol a Nothing Nothing Nothing Nothing Nothing
+
+-- | @grouping@ /(complex)/
+--
+-- The grouping type is used for musical analysis. When the type attribute is "start" or "single", it usually contains one or more feature elements. The number attribute is used for distinguishing between overlapping and hierarchical groupings. The member-of attribute allows for easy distinguishing of what grouping elements are in what hierarchy. Feature elements contained within a "stop" type of grouping may be ignored.
+-- 	
+-- This element is flexible to allow for different types of analyses. Future versions of the MusicXML format may add elements that can represent more standardized categories of analysis data, allowing for easier data sharing.
+data Grouping = 
+      Grouping {
+          groupingType :: StartStopSingle -- ^ /type/ attribute
+        , groupingNumber :: (Maybe Token) -- ^ /number/ attribute
+        , groupingMemberOf :: (Maybe Token) -- ^ /member-of/ attribute
+        , groupingFeature :: [Feature] -- ^ /feature/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Grouping where
+    emitXml (Grouping a b c d) =
+      XContent XEmpty
+        ([XAttr (QN "type" Nothing) (emitXml a)] ++
+        [maybe XEmpty (XAttr (QN "number" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "member-of" Nothing).emitXml) c])
+        (map (XElement (QN "feature" Nothing).emitXml) d)
+parseGrouping :: P.XParse Grouping
+parseGrouping = 
+      Grouping
+        <$> (P.xattr (P.name "type") >>= parseStartStopSingle)
+        <*> P.optional (P.xattr (P.name "number") >>= parseToken)
+        <*> P.optional (P.xattr (P.name "member-of") >>= parseToken)
+        <*> P.many (P.xchild (P.name "feature") (parseFeature))
+
+-- | Smart constructor for 'Grouping'
+mkGrouping :: StartStopSingle -> Grouping
+mkGrouping a = Grouping a Nothing Nothing []
+
+-- | @hammer-on-pull-off@ /(complex)/
+--
+-- The hammer-on and pull-off elements are used in guitar and fretted instrument notation. Since a single slur can be marked over many notes, the hammer-on and pull-off elements are separate so the individual pair of notes can be specified. The element content can be used to specify how the hammer-on or pull-off should be notated. An empty element leaves this choice up to the application.
+data HammerOnPullOff = 
+      HammerOnPullOff {
+          hammerOnPullOffString :: String -- ^ text content
+        , hammerOnPullOffType :: StartStop -- ^ /type/ attribute
+        , hammerOnPullOffNumber :: (Maybe NumberLevel) -- ^ /number/ attribute
+        , hammerOnPullOffDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , hammerOnPullOffDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , hammerOnPullOffRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , hammerOnPullOffRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , hammerOnPullOffFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , hammerOnPullOffFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , hammerOnPullOffFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , hammerOnPullOffFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , hammerOnPullOffColor :: (Maybe Color) -- ^ /color/ attribute
+        , hammerOnPullOffPlacement :: (Maybe AboveBelow) -- ^ /placement/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml HammerOnPullOff where
+    emitXml (HammerOnPullOff a b c d e f g h i j k l m) =
+      XContent (emitXml a)
+        ([XAttr (QN "type" Nothing) (emitXml b)] ++
+        [maybe XEmpty (XAttr (QN "number" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) l] ++
+        [maybe XEmpty (XAttr (QN "placement" Nothing).emitXml) m])
+        []
+parseHammerOnPullOff :: P.XParse HammerOnPullOff
+parseHammerOnPullOff = 
+      HammerOnPullOff
+        <$> (P.xtext >>= return)
+        <*> (P.xattr (P.name "type") >>= parseStartStop)
+        <*> P.optional (P.xattr (P.name "number") >>= parseNumberLevel)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "placement") >>= parseAboveBelow)
+
+-- | Smart constructor for 'HammerOnPullOff'
+mkHammerOnPullOff :: String -> StartStop -> HammerOnPullOff
+mkHammerOnPullOff a b = HammerOnPullOff a b Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @harmonic@ /(complex)/
+--
+-- The harmonic type indicates natural and artificial harmonics. Allowing the type of pitch to be specified, combined with controls for appearance/playback differences, allows both the notation and the sound to be represented. Artificial harmonics can add a notated touching-pitch; artificial pinch harmonics will usually not notate a touching pitch. The attributes for the harmonic element refer to the use of the circular harmonic symbol, typically but not always used with natural harmonics.
+data Harmonic = 
+      Harmonic {
+          harmonicPrintObject :: (Maybe YesNo) -- ^ /print-object/ attribute
+        , harmonicDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , harmonicDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , harmonicRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , harmonicRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , harmonicFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , harmonicFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , harmonicFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , harmonicFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , harmonicColor :: (Maybe Color) -- ^ /color/ attribute
+        , harmonicPlacement :: (Maybe AboveBelow) -- ^ /placement/ attribute
+        , harmonicHarmonic :: (Maybe ChxHarmonic)
+        , harmonicHarmonic1 :: (Maybe ChxHarmonic1)
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Harmonic where
+    emitXml (Harmonic a b c d e f g h i j k l m) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "print-object" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "placement" Nothing).emitXml) k])
+        ([emitXml l] ++
+        [emitXml m])
+parseHarmonic :: P.XParse Harmonic
+parseHarmonic = 
+      Harmonic
+        <$> P.optional (P.xattr (P.name "print-object") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "placement") >>= parseAboveBelow)
+        <*> P.optional (parseChxHarmonic)
+        <*> P.optional (parseChxHarmonic1)
+
+-- | Smart constructor for 'Harmonic'
+mkHarmonic :: Harmonic
+mkHarmonic = Harmonic Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @harmony@ /(complex)/
+--
+-- The harmony type is based on Humdrum's **harm encoding, extended to support chord symbols in popular music as well as functional harmony analysis in classical music.
+-- 	
+-- If there are alternate harmonies possible, this can be specified using multiple harmony elements differentiated by type. Explicit harmonies have all note present in the music; implied have some notes missing but implied; alternate represents alternate analyses. 
+-- 	
+-- The harmony object may be used for analysis or for chord symbols. The print-object attribute controls whether or not anything is printed due to the harmony element. The print-frame attribute controls printing of a frame or fretboard diagram. The print-style attribute group sets the default for the harmony, but individual elements can override this with their own print-style values.
+data Harmony = 
+      Harmony {
+          harmonyType :: (Maybe HarmonyType) -- ^ /type/ attribute
+        , harmonyPrintFrame :: (Maybe YesNo) -- ^ /print-frame/ attribute
+        , harmonyPrintObject :: (Maybe YesNo) -- ^ /print-object/ attribute
+        , harmonyDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , harmonyDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , harmonyRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , harmonyRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , harmonyFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , harmonyFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , harmonyFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , harmonyFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , harmonyColor :: (Maybe Color) -- ^ /color/ attribute
+        , harmonyPlacement :: (Maybe AboveBelow) -- ^ /placement/ attribute
+        , harmonyHarmonyChord :: [HarmonyChord]
+        , harmonyFrame :: (Maybe Frame) -- ^ /frame/ child element
+        , harmonyOffset :: (Maybe Offset) -- ^ /offset/ child element
+        , harmonyEditorial :: Editorial
+        , harmonyStaff :: (Maybe Staff)
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Harmony where
+    emitXml (Harmony a b c d e f g h i j k l m n o p q r) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "type" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "print-frame" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "print-object" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) l] ++
+        [maybe XEmpty (XAttr (QN "placement" Nothing).emitXml) m])
+        ([emitXml n] ++
+        [maybe XEmpty (XElement (QN "frame" Nothing).emitXml) o] ++
+        [maybe XEmpty (XElement (QN "offset" Nothing).emitXml) p] ++
+        [emitXml q] ++
+        [emitXml r])
+parseHarmony :: P.XParse Harmony
+parseHarmony = 
+      Harmony
+        <$> P.optional (P.xattr (P.name "type") >>= parseHarmonyType)
+        <*> P.optional (P.xattr (P.name "print-frame") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "print-object") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "placement") >>= parseAboveBelow)
+        <*> P.many (parseHarmonyChord)
+        <*> P.optional (P.xchild (P.name "frame") (parseFrame))
+        <*> P.optional (P.xchild (P.name "offset") (parseOffset))
+        <*> parseEditorial
+        <*> P.optional (parseStaff)
+
+-- | Smart constructor for 'Harmony'
+mkHarmony :: Editorial -> Harmony
+mkHarmony q = Harmony Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing [] Nothing Nothing q Nothing
+
+-- | @harp-pedals@ /(complex)/
+--
+-- The harp-pedals type is used to create harp pedal diagrams. The pedal-step and pedal-alter elements use the same values as the step and alter elements. For easiest reading, the pedal-tuning elements should follow standard harp pedal order, with pedal-step values of D, C, B, E, F, G, and A.
+data HarpPedals = 
+      HarpPedals {
+          harpPedalsDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , harpPedalsDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , harpPedalsRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , harpPedalsRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , harpPedalsFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , harpPedalsFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , harpPedalsFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , harpPedalsFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , harpPedalsColor :: (Maybe Color) -- ^ /color/ attribute
+        , harpPedalsPedalTuning :: [PedalTuning] -- ^ /pedal-tuning/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml HarpPedals where
+    emitXml (HarpPedals a b c d e f g h i j) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) i])
+        (map (XElement (QN "pedal-tuning" Nothing).emitXml) j)
+parseHarpPedals :: P.XParse HarpPedals
+parseHarpPedals = 
+      HarpPedals
+        <$> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.many (P.xchild (P.name "pedal-tuning") (parsePedalTuning))
+
+-- | Smart constructor for 'HarpPedals'
+mkHarpPedals :: HarpPedals
+mkHarpPedals = HarpPedals Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing []
+
+-- | @heel-toe@ /(complex)/
+--
+-- The heel and toe elements are used with organ pedals. The substitution value is "no" if the attribute is not present.
+data HeelToe = 
+      HeelToe {
+          heelToeEmptyPlacement :: HeelToe
+        , heelToeSubstitution :: (Maybe YesNo) -- ^ /substitution/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml HeelToe where
+    emitXml (HeelToe a b) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "substitution" Nothing).emitXml) b])
+        ([emitXml a])
+parseHeelToe :: P.XParse HeelToe
+parseHeelToe = 
+      HeelToe
+        <$> parseHeelToe
+        <*> P.optional (P.xattr (P.name "substitution") >>= parseYesNo)
+
+-- | Smart constructor for 'HeelToe'
+mkHeelToe :: HeelToe -> HeelToe
+mkHeelToe a = HeelToe a Nothing
+
+-- | @identification@ /(complex)/
+--
+-- Identification contains basic metadata about the score. It includes the information in MuseData headers that may apply at a score-wide, movement-wide, or part-wide level. The creator, rights, source, and relation elements are based on Dublin Core.
+data Identification = 
+      Identification {
+          identificationCreator :: [TypedText] -- ^ /creator/ child element
+        , identificationRights :: [TypedText] -- ^ /rights/ child element
+        , identificationEncoding :: (Maybe Encoding) -- ^ /encoding/ child element
+        , identificationSource :: (Maybe String) -- ^ /source/ child element
+        , identificationRelation :: [TypedText] -- ^ /relation/ child element
+        , identificationMiscellaneous :: (Maybe Miscellaneous) -- ^ /miscellaneous/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Identification where
+    emitXml (Identification a b c d e f) =
+      XContent XEmpty
+        []
+        (map (XElement (QN "creator" Nothing).emitXml) a ++
+        map (XElement (QN "rights" Nothing).emitXml) b ++
+        [maybe XEmpty (XElement (QN "encoding" Nothing).emitXml) c] ++
+        [maybe XEmpty (XElement (QN "source" Nothing).emitXml) d] ++
+        map (XElement (QN "relation" Nothing).emitXml) e ++
+        [maybe XEmpty (XElement (QN "miscellaneous" Nothing).emitXml) f])
+parseIdentification :: P.XParse Identification
+parseIdentification = 
+      Identification
+        <$> P.many (P.xchild (P.name "creator") (parseTypedText))
+        <*> P.many (P.xchild (P.name "rights") (parseTypedText))
+        <*> P.optional (P.xchild (P.name "encoding") (parseEncoding))
+        <*> P.optional (P.xchild (P.name "source") (P.xtext >>= return))
+        <*> P.many (P.xchild (P.name "relation") (parseTypedText))
+        <*> P.optional (P.xchild (P.name "miscellaneous") (parseMiscellaneous))
+
+-- | Smart constructor for 'Identification'
+mkIdentification :: Identification
+mkIdentification = Identification [] [] Nothing Nothing [] Nothing
+
+-- | @image@ /(complex)/
+--
+-- The image type is used to include graphical images in a score.
+data Image = 
+      Image {
+          imageSource :: String -- ^ /source/ attribute
+        , imageType :: Token -- ^ /type/ attribute
+        , imageDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , imageDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , imageRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , imageRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , imageHalign :: (Maybe LeftCenterRight) -- ^ /halign/ attribute
+        , imageValign :: (Maybe ValignImage) -- ^ /valign/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Image where
+    emitXml (Image a b c d e f g h) =
+      XContent XEmpty
+        ([XAttr (QN "source" Nothing) (emitXml a)] ++
+        [XAttr (QN "type" Nothing) (emitXml b)] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "halign" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "valign" Nothing).emitXml) h])
+        []
+parseImage :: P.XParse Image
+parseImage = 
+      Image
+        <$> (P.xattr (P.name "source") >>= return)
+        <*> (P.xattr (P.name "type") >>= parseToken)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "halign") >>= parseLeftCenterRight)
+        <*> P.optional (P.xattr (P.name "valign") >>= parseValignImage)
+
+-- | Smart constructor for 'Image'
+mkImage :: String -> Token -> Image
+mkImage a b = Image a b Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @instrument@ /(complex)/
+--
+-- The instrument type distinguishes between score-instrument elements in a score-part. The id attribute is an IDREF back to the score-instrument ID. If multiple score-instruments are specified on a score-part, there should be an instrument element for each note in the part.
+data Instrument = 
+      Instrument {
+          instrumentId :: IDREF -- ^ /id/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Instrument where
+    emitXml (Instrument a) =
+      XContent XEmpty
+        ([XAttr (QN "id" Nothing) (emitXml a)])
+        []
+parseInstrument :: P.XParse Instrument
+parseInstrument = 
+      Instrument
+        <$> (P.xattr (P.name "id") >>= parseIDREF)
+
+-- | Smart constructor for 'Instrument'
+mkInstrument :: IDREF -> Instrument
+mkInstrument a = Instrument a
+
+-- | @inversion@ /(complex)/
+--
+-- The inversion type represents harmony inversions. The value is a number indicating which inversion is used: 0 for root position, 1 for first inversion, etc.
+data Inversion = 
+      Inversion {
+          inversionNonNegativeInteger :: NonNegativeInteger -- ^ text content
+        , inversionDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , inversionDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , inversionRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , inversionRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , inversionFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , inversionFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , inversionFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , inversionFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , inversionColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Inversion where
+    emitXml (Inversion a b c d e f g h i j) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) j])
+        []
+parseInversion :: P.XParse Inversion
+parseInversion = 
+      Inversion
+        <$> (P.xtext >>= parseNonNegativeInteger)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'Inversion'
+mkInversion :: NonNegativeInteger -> Inversion
+mkInversion a = Inversion a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @key@ /(complex)/
+--
+-- The key type represents a key signature. Both traditional and non-traditional key signatures are supported. The optional number attribute refers to staff numbers. If absent, the key signature applies to all staves in the part.
+data Key = 
+      Key {
+          keyNumber :: (Maybe StaffNumber) -- ^ /number/ attribute
+        , keyDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , keyDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , keyRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , keyRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , keyFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , keyFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , keyFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , keyFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , keyColor :: (Maybe Color) -- ^ /color/ attribute
+        , keyPrintObject :: (Maybe YesNo) -- ^ /print-object/ attribute
+        , keyKey :: ChxKey
+        , keyKeyOctave :: [KeyOctave] -- ^ /key-octave/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Key where
+    emitXml (Key a b c d e f g h i j k l m) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "number" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "print-object" Nothing).emitXml) k])
+        ([emitXml l] ++
+        map (XElement (QN "key-octave" Nothing).emitXml) m)
+parseKey :: P.XParse Key
+parseKey = 
+      Key
+        <$> P.optional (P.xattr (P.name "number") >>= parseStaffNumber)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "print-object") >>= parseYesNo)
+        <*> parseChxKey
+        <*> P.many (P.xchild (P.name "key-octave") (parseKeyOctave))
+
+-- | Smart constructor for 'Key'
+mkKey :: ChxKey -> Key
+mkKey l = Key Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing l []
+
+-- | @key-octave@ /(complex)/
+--
+-- The key-octave element specifies in which octave an element of a key signature appears. The content specifies the octave value using the same values as the display-octave element. The number attribute is a positive integer that refers to the key signature element in left-to-right order. If the cancel attribute is set to yes, then this number refers to an element specified by the cancel element. It is no by default.
+data KeyOctave = 
+      KeyOctave {
+          keyOctaveOctave :: Octave -- ^ text content
+        , keyOctaveNumber :: PositiveInteger -- ^ /number/ attribute
+        , keyOctaveCancel :: (Maybe YesNo) -- ^ /cancel/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml KeyOctave where
+    emitXml (KeyOctave a b c) =
+      XContent (emitXml a)
+        ([XAttr (QN "number" Nothing) (emitXml b)] ++
+        [maybe XEmpty (XAttr (QN "cancel" Nothing).emitXml) c])
+        []
+parseKeyOctave :: P.XParse KeyOctave
+parseKeyOctave = 
+      KeyOctave
+        <$> (P.xtext >>= parseOctave)
+        <*> (P.xattr (P.name "number") >>= parsePositiveInteger)
+        <*> P.optional (P.xattr (P.name "cancel") >>= parseYesNo)
+
+-- | Smart constructor for 'KeyOctave'
+mkKeyOctave :: Octave -> PositiveInteger -> KeyOctave
+mkKeyOctave a b = KeyOctave a b Nothing
+
+-- | @kind@ /(complex)/
+--
+-- Kind indicates the type of chord. Degree elements can then add, subtract, or alter from these starting points
+--
+-- @
+-- 	
+-- The attributes are used to indicate the formatting of the symbol. Since the kind element is the constant in all the harmony-chord groups that can make up a polychord, many formatting attributes are here.
+-- 	
+-- The use-symbols attribute is yes if the kind should be represented when possible with harmony symbols rather than letters and numbers. These symbols include:
+-- 	
+-- 	major: a triangle, like Unicode 25B3
+-- 	minor: -, like Unicode 002D
+-- 	augmented: +, like Unicode 002B
+-- 	diminished: °, like Unicode 00B0
+-- 	half-diminished: ø, like Unicode 00F8
+-- 	
+-- The text attribute describes how the kind should be spelled if not using symbols; it is ignored if use-symbols is yes. The stack-degrees attribute is yes if the degree elements should be stacked above each other. The parentheses-degrees attribute is yes if all the degrees should be in parentheses. The bracket-degrees attribute is yes if all the degrees should be in a bracket. If not specified, these values are implementation-specific. The alignment attributes are for the entire harmony-chord group of which this kind element is a part.
+-- @
+data Kind = 
+      Kind {
+          kindKindValue :: KindValue -- ^ text content
+        , kindUseSymbols :: (Maybe YesNo) -- ^ /use-symbols/ attribute
+        , kindText :: (Maybe Token) -- ^ /text/ attribute
+        , kindStackDegrees :: (Maybe YesNo) -- ^ /stack-degrees/ attribute
+        , kindParenthesesDegrees :: (Maybe YesNo) -- ^ /parentheses-degrees/ attribute
+        , kindBracketDegrees :: (Maybe YesNo) -- ^ /bracket-degrees/ attribute
+        , kindDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , kindDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , kindRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , kindRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , kindFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , kindFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , kindFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , kindFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , kindColor :: (Maybe Color) -- ^ /color/ attribute
+        , kindHalign :: (Maybe LeftCenterRight) -- ^ /halign/ attribute
+        , kindValign :: (Maybe Valign) -- ^ /valign/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Kind where
+    emitXml (Kind a b c d e f g h i j k l m n o p q) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "use-symbols" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "text" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "stack-degrees" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "parentheses-degrees" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "bracket-degrees" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) l] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) m] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) n] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) o] ++
+        [maybe XEmpty (XAttr (QN "halign" Nothing).emitXml) p] ++
+        [maybe XEmpty (XAttr (QN "valign" Nothing).emitXml) q])
+        []
+parseKind :: P.XParse Kind
+parseKind = 
+      Kind
+        <$> (P.xtext >>= parseKindValue)
+        <*> P.optional (P.xattr (P.name "use-symbols") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "text") >>= parseToken)
+        <*> P.optional (P.xattr (P.name "stack-degrees") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "parentheses-degrees") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "bracket-degrees") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "halign") >>= parseLeftCenterRight)
+        <*> P.optional (P.xattr (P.name "valign") >>= parseValign)
+
+-- | Smart constructor for 'Kind'
+mkKind :: KindValue -> Kind
+mkKind a = Kind a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @level@ /(complex)/
+--
+-- The level type is used to specify editorial information for different MusicXML elements. If the reference attribute for the level element is yes, this indicates editorial information that is for display only and should not affect playback. For instance, a modern edition of older music may set reference="yes" on the attributes containing the music's original clef, key, and time signature. It is no by default.
+data Level = 
+      Level {
+          levelString :: String -- ^ text content
+        , levelReference :: (Maybe YesNo) -- ^ /reference/ attribute
+        , levelParentheses :: (Maybe YesNo) -- ^ /parentheses/ attribute
+        , levelBracket :: (Maybe YesNo) -- ^ /bracket/ attribute
+        , levelSize :: (Maybe SymbolSize) -- ^ /size/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Level where
+    emitXml (Level a b c d e) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "reference" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "parentheses" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "bracket" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "size" Nothing).emitXml) e])
+        []
+parseLevel :: P.XParse Level
+parseLevel = 
+      Level
+        <$> (P.xtext >>= return)
+        <*> P.optional (P.xattr (P.name "reference") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "parentheses") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "bracket") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "size") >>= parseSymbolSize)
+
+-- | Smart constructor for 'Level'
+mkLevel :: String -> Level
+mkLevel a = Level a Nothing Nothing Nothing Nothing
+
+-- | @line-width@ /(complex)/
+--
+-- The line-width type indicates the width of a line type in tenths. The type attribute defines what type of line is being defined. Values include beam, bracket, dashes, enclosure, ending, extend, heavy barline, leger, light barline, octave shift, pedal, slur middle, slur tip, staff, stem, tie middle, tie tip, tuplet bracket, and wedge. The text content is expressed in tenths.
+data LineWidth = 
+      LineWidth {
+          lineWidthTenths :: Tenths -- ^ text content
+        , cmplineWidthType :: LineWidthType -- ^ /type/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml LineWidth where
+    emitXml (LineWidth a b) =
+      XContent (emitXml a)
+        ([XAttr (QN "type" Nothing) (emitXml b)])
+        []
+parseLineWidth :: P.XParse LineWidth
+parseLineWidth = 
+      LineWidth
+        <$> (P.xtext >>= parseTenths)
+        <*> (P.xattr (P.name "type") >>= parseLineWidthType)
+
+-- | Smart constructor for 'LineWidth'
+mkLineWidth :: Tenths -> LineWidthType -> LineWidth
+mkLineWidth a b = LineWidth a b
+
+-- | @link@ /(complex)/
+--
+-- The link type serves as an outgoing simple XLink. It is also used to connect a MusicXML score with a MusicXML opus.
+data Link = 
+      Link {
+          linkName :: (Maybe Token) -- ^ /name/ attribute
+        , linkHref :: String -- ^ /xlink:href/ attribute
+        , linkType :: (Maybe Type) -- ^ /xlink:type/ attribute
+        , linkRole :: (Maybe Token) -- ^ /xlink:role/ attribute
+        , linkTitle :: (Maybe Token) -- ^ /xlink:title/ attribute
+        , linkShow :: (Maybe SmpShow) -- ^ /xlink:show/ attribute
+        , linkActuate :: (Maybe Actuate) -- ^ /xlink:actuate/ attribute
+        , linkElement :: (Maybe NMTOKEN) -- ^ /element/ attribute
+        , linkPosition :: (Maybe PositiveInteger) -- ^ /position/ attribute
+        , linkDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , linkDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , linkRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , linkRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Link where
+    emitXml (Link a b c d e f g h i j k l m) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "name" Nothing).emitXml) a] ++
+        [XAttr (QN "href" (Just "xlink")) (emitXml b)] ++
+        [maybe XEmpty (XAttr (QN "type" (Just "xlink")).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "role" (Just "xlink")).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "title" (Just "xlink")).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "show" (Just "xlink")).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "actuate" (Just "xlink")).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "element" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "position" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) l] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) m])
+        []
+parseLink :: P.XParse Link
+parseLink = 
+      Link
+        <$> P.optional (P.xattr (P.name "name") >>= parseToken)
+        <*> (P.xattr (P.name "xlink:href") >>= return)
+        <*> P.optional (P.xattr (P.name "xlink:type") >>= parseType)
+        <*> P.optional (P.xattr (P.name "xlink:role") >>= parseToken)
+        <*> P.optional (P.xattr (P.name "xlink:title") >>= parseToken)
+        <*> P.optional (P.xattr (P.name "xlink:show") >>= parseSmpShow)
+        <*> P.optional (P.xattr (P.name "xlink:actuate") >>= parseActuate)
+        <*> P.optional (P.xattr (P.name "element") >>= parseNMTOKEN)
+        <*> P.optional (P.xattr (P.name "position") >>= parsePositiveInteger)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+
+-- | Smart constructor for 'Link'
+mkLink :: String -> Link
+mkLink b = Link Nothing b Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @lyric@ /(complex)/
+--
+-- The lyric type represents text underlays for lyrics, based on Humdrum with support for other formats. Two text elements that are not separated by an elision element are part of the same syllable, but may have different text formatting. The MusicXML 2.0 XSD is more strict than the 2.0 DTD in enforcing this by disallowing a second syllabic element unless preceded by an elision element. The lyric number indicates multiple lines, though a name can be used as well (as in Finale's verse / chorus / section specification). Justification is center by default; placement is below by default.
+data Lyric = 
+      Lyric {
+          lyricNumber :: (Maybe NMTOKEN) -- ^ /number/ attribute
+        , lyricName :: (Maybe Token) -- ^ /name/ attribute
+        , lyricJustify :: (Maybe LeftCenterRight) -- ^ /justify/ attribute
+        , lyricDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , lyricDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , lyricRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , lyricRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , lyricPlacement :: (Maybe AboveBelow) -- ^ /placement/ attribute
+        , lyricColor :: (Maybe Color) -- ^ /color/ attribute
+        , lyricLyric :: ChxLyric
+        , lyricEndLine :: (Maybe Empty) -- ^ /end-line/ child element
+        , lyricEndParagraph :: (Maybe Empty) -- ^ /end-paragraph/ child element
+        , lyricEditorial :: Editorial
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Lyric where
+    emitXml (Lyric a b c d e f g h i j k l m) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "number" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "name" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "justify" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "placement" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) i])
+        ([emitXml j] ++
+        [maybe XEmpty (XElement (QN "end-line" Nothing).emitXml) k] ++
+        [maybe XEmpty (XElement (QN "end-paragraph" Nothing).emitXml) l] ++
+        [emitXml m])
+parseLyric :: P.XParse Lyric
+parseLyric = 
+      Lyric
+        <$> P.optional (P.xattr (P.name "number") >>= parseNMTOKEN)
+        <*> P.optional (P.xattr (P.name "name") >>= parseToken)
+        <*> P.optional (P.xattr (P.name "justify") >>= parseLeftCenterRight)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "placement") >>= parseAboveBelow)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> parseChxLyric
+        <*> P.optional (P.xchild (P.name "end-line") (parseEmpty))
+        <*> P.optional (P.xchild (P.name "end-paragraph") (parseEmpty))
+        <*> parseEditorial
+
+-- | Smart constructor for 'Lyric'
+mkLyric :: ChxLyric -> Editorial -> Lyric
+mkLyric j m = Lyric Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing j Nothing Nothing m
+
+-- | @lyric-font@ /(complex)/
+--
+-- The lyric-font type specifies the default font for a particular name and number of lyric.
+data LyricFont = 
+      LyricFont {
+          lyricFontNumber :: (Maybe NMTOKEN) -- ^ /number/ attribute
+        , lyricFontName :: (Maybe Token) -- ^ /name/ attribute
+        , lyricFontFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , lyricFontFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , lyricFontFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , lyricFontFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml LyricFont where
+    emitXml (LyricFont a b c d e f) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "number" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "name" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) f])
+        []
+parseLyricFont :: P.XParse LyricFont
+parseLyricFont = 
+      LyricFont
+        <$> P.optional (P.xattr (P.name "number") >>= parseNMTOKEN)
+        <*> P.optional (P.xattr (P.name "name") >>= parseToken)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+
+-- | Smart constructor for 'LyricFont'
+mkLyricFont :: LyricFont
+mkLyricFont = LyricFont Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @lyric-language@ /(complex)/
+--
+-- The lyric-language type specifies the default language for a particular name and number of lyric.
+data LyricLanguage = 
+      LyricLanguage {
+          lyricLanguageNumber :: (Maybe NMTOKEN) -- ^ /number/ attribute
+        , lyricLanguageName :: (Maybe Token) -- ^ /name/ attribute
+        , lyricLanguageLang :: Lang -- ^ /xml:lang/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml LyricLanguage where
+    emitXml (LyricLanguage a b c) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "number" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "name" Nothing).emitXml) b] ++
+        [XAttr (QN "lang" (Just "xml")) (emitXml c)])
+        []
+parseLyricLanguage :: P.XParse LyricLanguage
+parseLyricLanguage = 
+      LyricLanguage
+        <$> P.optional (P.xattr (P.name "number") >>= parseNMTOKEN)
+        <*> P.optional (P.xattr (P.name "name") >>= parseToken)
+        <*> (P.xattr (P.name "xml:lang") >>= parseLang)
+
+-- | Smart constructor for 'LyricLanguage'
+mkLyricLanguage :: Lang -> LyricLanguage
+mkLyricLanguage c = LyricLanguage Nothing Nothing c
+
+-- | @measure@ /(complex)/
+data Measure = 
+      Measure {
+          measureNumber :: Token -- ^ /number/ attribute
+        , measureImplicit :: (Maybe YesNo) -- ^ /implicit/ attribute
+        , measureNonControlling :: (Maybe YesNo) -- ^ /non-controlling/ attribute
+        , measureWidth :: (Maybe Tenths) -- ^ /width/ attribute
+        , measureMusicData :: MusicData
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Measure where
+    emitXml (Measure a b c d e) =
+      XContent XEmpty
+        ([XAttr (QN "number" Nothing) (emitXml a)] ++
+        [maybe XEmpty (XAttr (QN "implicit" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "non-controlling" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "width" Nothing).emitXml) d])
+        ([emitXml e])
+parseMeasure :: P.XParse Measure
+parseMeasure = 
+      Measure
+        <$> (P.xattr (P.name "number") >>= parseToken)
+        <*> P.optional (P.xattr (P.name "implicit") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "non-controlling") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "width") >>= parseTenths)
+        <*> parseMusicData
+
+-- | Smart constructor for 'Measure'
+mkMeasure :: Token -> MusicData -> Measure
+mkMeasure a e = Measure a Nothing Nothing Nothing e
+
+-- | @measure@ /(complex)/
+
+-- mangled: 1
+data CmpMeasure = 
+      CmpMeasure {
+          cmpmeasureNumber :: Token -- ^ /number/ attribute
+        , cmpmeasureImplicit :: (Maybe YesNo) -- ^ /implicit/ attribute
+        , cmpmeasureNonControlling :: (Maybe YesNo) -- ^ /non-controlling/ attribute
+        , cmpmeasureWidth :: (Maybe Tenths) -- ^ /width/ attribute
+        , measurePart :: [Part] -- ^ /part/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml CmpMeasure where
+    emitXml (CmpMeasure a b c d e) =
+      XContent XEmpty
+        ([XAttr (QN "number" Nothing) (emitXml a)] ++
+        [maybe XEmpty (XAttr (QN "implicit" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "non-controlling" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "width" Nothing).emitXml) d])
+        (map (XElement (QN "part" Nothing).emitXml) e)
+parseCmpMeasure :: P.XParse CmpMeasure
+parseCmpMeasure = 
+      CmpMeasure
+        <$> (P.xattr (P.name "number") >>= parseToken)
+        <*> P.optional (P.xattr (P.name "implicit") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "non-controlling") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "width") >>= parseTenths)
+        <*> P.many (P.xchild (P.name "part") (parsePart))
+
+-- | Smart constructor for 'CmpMeasure'
+mkCmpMeasure :: Token -> CmpMeasure
+mkCmpMeasure a = CmpMeasure a Nothing Nothing Nothing []
+
+-- | @measure-layout@ /(complex)/
+--
+-- The measure-layout type includes the horizontal distance from the previous measure.
+data MeasureLayout = 
+      MeasureLayout {
+          measureLayoutMeasureDistance :: (Maybe Tenths) -- ^ /measure-distance/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml MeasureLayout where
+    emitXml (MeasureLayout a) =
+      XContent XEmpty
+        []
+        ([maybe XEmpty (XElement (QN "measure-distance" Nothing).emitXml) a])
+parseMeasureLayout :: P.XParse MeasureLayout
+parseMeasureLayout = 
+      MeasureLayout
+        <$> P.optional (P.xchild (P.name "measure-distance") (P.xtext >>= parseTenths))
+
+-- | Smart constructor for 'MeasureLayout'
+mkMeasureLayout :: MeasureLayout
+mkMeasureLayout = MeasureLayout Nothing
+
+-- | @measure-numbering@ /(complex)/
+--
+-- The measure-numbering type describes how frequently measure numbers are displayed on this part. The number attribute from the measure element is used for printing. Measures with an implicit attribute set to "yes" never display a measure number, regardless of the measure-numbering setting.
+data MeasureNumbering = 
+      MeasureNumbering {
+          measureNumberingMeasureNumberingValue :: MeasureNumberingValue -- ^ text content
+        , measureNumberingDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , measureNumberingDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , measureNumberingRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , measureNumberingRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , measureNumberingFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , measureNumberingFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , measureNumberingFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , measureNumberingFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , measureNumberingColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml MeasureNumbering where
+    emitXml (MeasureNumbering a b c d e f g h i j) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) j])
+        []
+parseMeasureNumbering :: P.XParse MeasureNumbering
+parseMeasureNumbering = 
+      MeasureNumbering
+        <$> (P.xtext >>= parseMeasureNumberingValue)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'MeasureNumbering'
+mkMeasureNumbering :: MeasureNumberingValue -> MeasureNumbering
+mkMeasureNumbering a = MeasureNumbering a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @measure-repeat@ /(complex)/
+--
+-- The measure-repeat type is used for both single and multiple measure repeats. The text of the element indicates the number of measures to be repeated in a single pattern. The slashes attribute specifies the number of slashes to use in the repeat sign. It is 1 if not specified. Both the start and the stop of the measure-repeat must be specified. The text of the element is ignored when the type is stop.
+-- 	
+-- The measure-repeat element specifies a notation style for repetitions. The actual music being repeated needs to be repeated within the MusicXML file. This element specifies the notation that indicates the repeat.
+data MeasureRepeat = 
+      MeasureRepeat {
+          measureRepeatPositiveIntegerOrEmpty :: PositiveIntegerOrEmpty -- ^ text content
+        , measureRepeatType :: StartStop -- ^ /type/ attribute
+        , measureRepeatSlashes :: (Maybe PositiveInteger) -- ^ /slashes/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml MeasureRepeat where
+    emitXml (MeasureRepeat a b c) =
+      XContent (emitXml a)
+        ([XAttr (QN "type" Nothing) (emitXml b)] ++
+        [maybe XEmpty (XAttr (QN "slashes" Nothing).emitXml) c])
+        []
+parseMeasureRepeat :: P.XParse MeasureRepeat
+parseMeasureRepeat = 
+      MeasureRepeat
+        <$> (P.xtext >>= parsePositiveIntegerOrEmpty)
+        <*> (P.xattr (P.name "type") >>= parseStartStop)
+        <*> P.optional (P.xattr (P.name "slashes") >>= parsePositiveInteger)
+
+-- | Smart constructor for 'MeasureRepeat'
+mkMeasureRepeat :: PositiveIntegerOrEmpty -> StartStop -> MeasureRepeat
+mkMeasureRepeat a b = MeasureRepeat a b Nothing
+
+-- | @measure-style@ /(complex)/
+--
+-- A measure-style indicates a special way to print partial to multiple measures within a part. This includes multiple rests over several measures, repeats of beats, single, or multiple measures, and use of slash notation.
+-- 
+-- The multiple-rest and measure-repeat symbols indicate the number of measures covered in the element content. The beat-repeat and slash elements can cover partial measures. All but the multiple-rest element use a type attribute to indicate starting and stopping the use of the style. The optional number attribute specifies the staff number from top to bottom on the system, as with clef.
+data MeasureStyle = 
+      MeasureStyle {
+          measureStyleNumber :: (Maybe StaffNumber) -- ^ /number/ attribute
+        , measureStyleFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , measureStyleFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , measureStyleFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , measureStyleFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , measureStyleColor :: (Maybe Color) -- ^ /color/ attribute
+        , measureStyleMeasureStyle :: ChxMeasureStyle
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml MeasureStyle where
+    emitXml (MeasureStyle a b c d e f g) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "number" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) f])
+        ([emitXml g])
+parseMeasureStyle :: P.XParse MeasureStyle
+parseMeasureStyle = 
+      MeasureStyle
+        <$> P.optional (P.xattr (P.name "number") >>= parseStaffNumber)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> parseChxMeasureStyle
+
+-- | Smart constructor for 'MeasureStyle'
+mkMeasureStyle :: ChxMeasureStyle -> MeasureStyle
+mkMeasureStyle g = MeasureStyle Nothing Nothing Nothing Nothing Nothing Nothing g
+
+-- | @metronome@ /(complex)/
+--
+-- The metronome type represents metronome marks and other metric relationships. The beat-unit group and per-minute element specify regular metronome marks. The metronome-note and metronome-relation elements allow for the specification of more complicated metric relationships, such as swing tempo marks where two eighths are equated to a quarter note / eighth note triplet. The parentheses attribute indicates whether or not to put the metronome mark in parentheses; its value is no if not specified.
+data Metronome = 
+      Metronome {
+          metronomeParentheses :: (Maybe YesNo) -- ^ /parentheses/ attribute
+        , metronomeDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , metronomeDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , metronomeRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , metronomeRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , metronomeFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , metronomeFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , metronomeFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , metronomeFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , metronomeColor :: (Maybe Color) -- ^ /color/ attribute
+        , metronomeMetronome :: ChxMetronome
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Metronome where
+    emitXml (Metronome a b c d e f g h i j k) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "parentheses" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) j])
+        ([emitXml k])
+parseMetronome :: P.XParse Metronome
+parseMetronome = 
+      Metronome
+        <$> P.optional (P.xattr (P.name "parentheses") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> parseChxMetronome
+
+-- | Smart constructor for 'Metronome'
+mkMetronome :: ChxMetronome -> Metronome
+mkMetronome k = Metronome Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing k
+
+-- | @metronome-beam@ /(complex)/
+--
+-- The metronome-beam type works like the beam type in defining metric relationships, but does not include all the attributes available in the beam type.
+data MetronomeBeam = 
+      MetronomeBeam {
+          metronomeBeamBeamValue :: BeamValue -- ^ text content
+        , metronomeBeamNumber :: (Maybe BeamLevel) -- ^ /number/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml MetronomeBeam where
+    emitXml (MetronomeBeam a b) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "number" Nothing).emitXml) b])
+        []
+parseMetronomeBeam :: P.XParse MetronomeBeam
+parseMetronomeBeam = 
+      MetronomeBeam
+        <$> (P.xtext >>= parseBeamValue)
+        <*> P.optional (P.xattr (P.name "number") >>= parseBeamLevel)
+
+-- | Smart constructor for 'MetronomeBeam'
+mkMetronomeBeam :: BeamValue -> MetronomeBeam
+mkMetronomeBeam a = MetronomeBeam a Nothing
+
+-- | @metronome-note@ /(complex)/
+--
+-- The metronome-note type defines the appearance of a note within a metric relationship mark.
+data MetronomeNote = 
+      MetronomeNote {
+          metronomeNoteMetronomeType :: NoteTypeValue -- ^ /metronome-type/ child element
+        , metronomeNoteMetronomeDot :: [Empty] -- ^ /metronome-dot/ child element
+        , metronomeNoteMetronomeBeam :: [MetronomeBeam] -- ^ /metronome-beam/ child element
+        , metronomeNoteMetronomeTuplet :: (Maybe MetronomeTuplet) -- ^ /metronome-tuplet/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml MetronomeNote where
+    emitXml (MetronomeNote a b c d) =
+      XContent XEmpty
+        []
+        ([XElement (QN "metronome-type" Nothing) (emitXml a)] ++
+        map (XElement (QN "metronome-dot" Nothing).emitXml) b ++
+        map (XElement (QN "metronome-beam" Nothing).emitXml) c ++
+        [maybe XEmpty (XElement (QN "metronome-tuplet" Nothing).emitXml) d])
+parseMetronomeNote :: P.XParse MetronomeNote
+parseMetronomeNote = 
+      MetronomeNote
+        <$> (P.xchild (P.name "metronome-type") (P.xtext >>= parseNoteTypeValue))
+        <*> P.many (P.xchild (P.name "metronome-dot") (parseEmpty))
+        <*> P.many (P.xchild (P.name "metronome-beam") (parseMetronomeBeam))
+        <*> P.optional (P.xchild (P.name "metronome-tuplet") (parseMetronomeTuplet))
+
+-- | Smart constructor for 'MetronomeNote'
+mkMetronomeNote :: NoteTypeValue -> MetronomeNote
+mkMetronomeNote a = MetronomeNote a [] [] Nothing
+
+-- | @metronome-tuplet@ /(complex)/
+--
+-- The metronome-tuplet type uses the same element structure as the time-modification element along with some attributes from the tuplet element.
+data MetronomeTuplet = 
+      MetronomeTuplet {
+          metronomeTupletTimeModification :: MetronomeTuplet
+        , metronomeTupletType :: StartStop -- ^ /type/ attribute
+        , metronomeTupletBracket :: (Maybe YesNo) -- ^ /bracket/ attribute
+        , metronomeTupletShowNumber :: (Maybe ShowTuplet) -- ^ /show-number/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml MetronomeTuplet where
+    emitXml (MetronomeTuplet a b c d) =
+      XContent XEmpty
+        ([XAttr (QN "type" Nothing) (emitXml b)] ++
+        [maybe XEmpty (XAttr (QN "bracket" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "show-number" Nothing).emitXml) d])
+        ([emitXml a])
+parseMetronomeTuplet :: P.XParse MetronomeTuplet
+parseMetronomeTuplet = 
+      MetronomeTuplet
+        <$> parseMetronomeTuplet
+        <*> (P.xattr (P.name "type") >>= parseStartStop)
+        <*> P.optional (P.xattr (P.name "bracket") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "show-number") >>= parseShowTuplet)
+
+-- | Smart constructor for 'MetronomeTuplet'
+mkMetronomeTuplet :: MetronomeTuplet -> StartStop -> MetronomeTuplet
+mkMetronomeTuplet a b = MetronomeTuplet a b Nothing Nothing
+
+-- | @midi-device@ /(complex)/
+--
+-- The midi-device type corresponds to the DeviceName meta event in Standard MIDI Files. The optional port attribute is a number from 1 to 16 that can be used with the unofficial MIDI port (or cable) meta event.
+data MidiDevice = 
+      MidiDevice {
+          midiDeviceString :: String -- ^ text content
+        , midiDevicePort :: (Maybe Midi16) -- ^ /port/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml MidiDevice where
+    emitXml (MidiDevice a b) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "port" Nothing).emitXml) b])
+        []
+parseMidiDevice :: P.XParse MidiDevice
+parseMidiDevice = 
+      MidiDevice
+        <$> (P.xtext >>= return)
+        <*> P.optional (P.xattr (P.name "port") >>= parseMidi16)
+
+-- | Smart constructor for 'MidiDevice'
+mkMidiDevice :: String -> MidiDevice
+mkMidiDevice a = MidiDevice a Nothing
+
+-- | @midi-instrument@ /(complex)/
+--
+-- The midi-instrument type defines MIDI 1.0 instrument playback. The midi-instrument element can be a part of either the score-instrument element at the start of a part, or the sound element within a part. The id attribute refers to the score-instrument affected by the change.
+data MidiInstrument = 
+      MidiInstrument {
+          midiInstrumentId :: IDREF -- ^ /id/ attribute
+        , midiInstrumentMidiChannel :: (Maybe Midi16) -- ^ /midi-channel/ child element
+        , midiInstrumentMidiName :: (Maybe String) -- ^ /midi-name/ child element
+        , midiInstrumentMidiBank :: (Maybe Midi16384) -- ^ /midi-bank/ child element
+        , midiInstrumentMidiProgram :: (Maybe Midi128) -- ^ /midi-program/ child element
+        , midiInstrumentMidiUnpitched :: (Maybe Midi128) -- ^ /midi-unpitched/ child element
+        , midiInstrumentVolume :: (Maybe Percent) -- ^ /volume/ child element
+        , midiInstrumentPan :: (Maybe RotationDegrees) -- ^ /pan/ child element
+        , midiInstrumentElevation :: (Maybe RotationDegrees) -- ^ /elevation/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml MidiInstrument where
+    emitXml (MidiInstrument a b c d e f g h i) =
+      XContent XEmpty
+        ([XAttr (QN "id" Nothing) (emitXml a)])
+        ([maybe XEmpty (XElement (QN "midi-channel" Nothing).emitXml) b] ++
+        [maybe XEmpty (XElement (QN "midi-name" Nothing).emitXml) c] ++
+        [maybe XEmpty (XElement (QN "midi-bank" Nothing).emitXml) d] ++
+        [maybe XEmpty (XElement (QN "midi-program" Nothing).emitXml) e] ++
+        [maybe XEmpty (XElement (QN "midi-unpitched" Nothing).emitXml) f] ++
+        [maybe XEmpty (XElement (QN "volume" Nothing).emitXml) g] ++
+        [maybe XEmpty (XElement (QN "pan" Nothing).emitXml) h] ++
+        [maybe XEmpty (XElement (QN "elevation" Nothing).emitXml) i])
+parseMidiInstrument :: P.XParse MidiInstrument
+parseMidiInstrument = 
+      MidiInstrument
+        <$> (P.xattr (P.name "id") >>= parseIDREF)
+        <*> P.optional (P.xchild (P.name "midi-channel") (P.xtext >>= parseMidi16))
+        <*> P.optional (P.xchild (P.name "midi-name") (P.xtext >>= return))
+        <*> P.optional (P.xchild (P.name "midi-bank") (P.xtext >>= parseMidi16384))
+        <*> P.optional (P.xchild (P.name "midi-program") (P.xtext >>= parseMidi128))
+        <*> P.optional (P.xchild (P.name "midi-unpitched") (P.xtext >>= parseMidi128))
+        <*> P.optional (P.xchild (P.name "volume") (P.xtext >>= parsePercent))
+        <*> P.optional (P.xchild (P.name "pan") (P.xtext >>= parseRotationDegrees))
+        <*> P.optional (P.xchild (P.name "elevation") (P.xtext >>= parseRotationDegrees))
+
+-- | Smart constructor for 'MidiInstrument'
+mkMidiInstrument :: IDREF -> MidiInstrument
+mkMidiInstrument a = MidiInstrument a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @miscellaneous@ /(complex)/
+--
+-- If a program has other metadata not yet supported in the MusicXML format, it can go in the miscellaneous element. The miscellaneous type puts each separate part of metadata into its own miscellaneous-field type.
+data Miscellaneous = 
+      Miscellaneous {
+          miscellaneousMiscellaneousField :: [MiscellaneousField] -- ^ /miscellaneous-field/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Miscellaneous where
+    emitXml (Miscellaneous a) =
+      XContent XEmpty
+        []
+        (map (XElement (QN "miscellaneous-field" Nothing).emitXml) a)
+parseMiscellaneous :: P.XParse Miscellaneous
+parseMiscellaneous = 
+      Miscellaneous
+        <$> P.many (P.xchild (P.name "miscellaneous-field") (parseMiscellaneousField))
+
+-- | Smart constructor for 'Miscellaneous'
+mkMiscellaneous :: Miscellaneous
+mkMiscellaneous = Miscellaneous []
+
+-- | @miscellaneous-field@ /(complex)/
+--
+-- If a program has other metadata not yet supported in the MusicXML format, each type of metadata can go in a miscellaneous-field element. The required name attribute indicates the type of metadata the element content represents.
+data MiscellaneousField = 
+      MiscellaneousField {
+          miscellaneousFieldString :: String -- ^ text content
+        , miscellaneousFieldName :: Token -- ^ /name/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml MiscellaneousField where
+    emitXml (MiscellaneousField a b) =
+      XContent (emitXml a)
+        ([XAttr (QN "name" Nothing) (emitXml b)])
+        []
+parseMiscellaneousField :: P.XParse MiscellaneousField
+parseMiscellaneousField = 
+      MiscellaneousField
+        <$> (P.xtext >>= return)
+        <*> (P.xattr (P.name "name") >>= parseToken)
+
+-- | Smart constructor for 'MiscellaneousField'
+mkMiscellaneousField :: String -> Token -> MiscellaneousField
+mkMiscellaneousField a b = MiscellaneousField a b
+
+-- | @mordent@ /(complex)/
+--
+-- The mordent type is used for both represents the mordent sign with the vertical line and the inverted-mordent sign without the line. The long attribute is "no" by default.
+data Mordent = 
+      Mordent {
+          mordentEmptyTrillSound :: Mordent
+        , mordentLong :: (Maybe YesNo) -- ^ /long/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Mordent where
+    emitXml (Mordent a b) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "long" Nothing).emitXml) b])
+        ([emitXml a])
+parseMordent :: P.XParse Mordent
+parseMordent = 
+      Mordent
+        <$> parseMordent
+        <*> P.optional (P.xattr (P.name "long") >>= parseYesNo)
+
+-- | Smart constructor for 'Mordent'
+mkMordent :: Mordent -> Mordent
+mkMordent a = Mordent a Nothing
+
+-- | @multiple-rest@ /(complex)/
+--
+-- The text of the multiple-rest type indicates the number of measures in the multiple rest. Multiple rests may use the 1-bar / 2-bar / 4-bar rest symbols, or a single shape. The use-symbols attribute indicates which to use; it is no if not specified. The element text is ignored when the type is stop.
+data MultipleRest = 
+      MultipleRest {
+          multipleRestPositiveIntegerOrEmpty :: PositiveIntegerOrEmpty -- ^ text content
+        , multipleRestUseSymbols :: (Maybe YesNo) -- ^ /use-symbols/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml MultipleRest where
+    emitXml (MultipleRest a b) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "use-symbols" Nothing).emitXml) b])
+        []
+parseMultipleRest :: P.XParse MultipleRest
+parseMultipleRest = 
+      MultipleRest
+        <$> (P.xtext >>= parsePositiveIntegerOrEmpty)
+        <*> P.optional (P.xattr (P.name "use-symbols") >>= parseYesNo)
+
+-- | Smart constructor for 'MultipleRest'
+mkMultipleRest :: PositiveIntegerOrEmpty -> MultipleRest
+mkMultipleRest a = MultipleRest a Nothing
+
+-- | @name-display@ /(complex)/
+--
+-- The name-display type is used for exact formatting of multi-font text in part and group names to the left of the system. The print-object attribute can be used to determine what, if anything, is printed at the start of each system. Enclosure for the display-text element is none by default. Language for the display-text element is Italian ("it") by default.
+data NameDisplay = 
+      NameDisplay {
+          nameDisplayPrintObject :: (Maybe YesNo) -- ^ /print-object/ attribute
+        , nameDisplayNameDisplay :: [ChxNameDisplay]
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml NameDisplay where
+    emitXml (NameDisplay a b) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "print-object" Nothing).emitXml) a])
+        ([emitXml b])
+parseNameDisplay :: P.XParse NameDisplay
+parseNameDisplay = 
+      NameDisplay
+        <$> P.optional (P.xattr (P.name "print-object") >>= parseYesNo)
+        <*> P.many (parseChxNameDisplay)
+
+-- | Smart constructor for 'NameDisplay'
+mkNameDisplay :: NameDisplay
+mkNameDisplay = NameDisplay Nothing []
+
+-- | @non-arpeggiate@ /(complex)/
+--
+-- The non-arpeggiate type indicates that this note is at the top or bottom of a bracket indicating to not arpeggiate these notes. Since this does not involve playback, it is only used on the top or bottom notes, not on each note as for the arpeggiate type.
+data NonArpeggiate = 
+      NonArpeggiate {
+          nonArpeggiateType :: TopBottom -- ^ /type/ attribute
+        , nonArpeggiateNumber :: (Maybe NumberLevel) -- ^ /number/ attribute
+        , nonArpeggiateDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , nonArpeggiateDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , nonArpeggiateRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , nonArpeggiateRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , nonArpeggiatePlacement :: (Maybe AboveBelow) -- ^ /placement/ attribute
+        , nonArpeggiateColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml NonArpeggiate where
+    emitXml (NonArpeggiate a b c d e f g h) =
+      XContent XEmpty
+        ([XAttr (QN "type" Nothing) (emitXml a)] ++
+        [maybe XEmpty (XAttr (QN "number" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "placement" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) h])
+        []
+parseNonArpeggiate :: P.XParse NonArpeggiate
+parseNonArpeggiate = 
+      NonArpeggiate
+        <$> (P.xattr (P.name "type") >>= parseTopBottom)
+        <*> P.optional (P.xattr (P.name "number") >>= parseNumberLevel)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "placement") >>= parseAboveBelow)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'NonArpeggiate'
+mkNonArpeggiate :: TopBottom -> NonArpeggiate
+mkNonArpeggiate a = NonArpeggiate a Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @notations@ /(complex)/
+--
+-- Notations refer to musical notations, not XML notations. Multiple notations are allowed in order to represent multiple editorial levels. The set of notations may be refined and expanded over time, especially to handle more instrument-specific technical notations.
+data Notations = 
+      Notations {
+          notationsEditorial :: Editorial
+        , notationsNotations :: [ChxNotations]
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Notations where
+    emitXml (Notations a b) =
+      XReps [emitXml a,emitXml b]
+parseNotations :: P.XParse Notations
+parseNotations = 
+      Notations
+        <$> parseEditorial
+        <*> P.many (parseChxNotations)
+
+-- | Smart constructor for 'Notations'
+mkNotations :: Editorial -> Notations
+mkNotations a = Notations a []
+
+-- | @note@ /(complex)/
+--
+-- Notes are the most common type of MusicXML data. The MusicXML format keeps the MuseData distinction between elements used for sound information and elements used for notation information (e.g., tie is used for sound, tied for notation). Thus grace notes do not have a duration element. Cue notes have a duration element, as do forward elements, but no tie elements. Having these two types of information available can make interchange considerably easier, as some programs handle one type of information much more readily than the other. 
+-- 	
+-- The dynamics and end-dynamics attributes correspond to MIDI 1.0's Note On and Note Off velocities, respectively. They are expressed in terms of percentages of the default forte value (90 for MIDI 1.0). The attack and release attributes are used to alter the staring and stopping time of the note from when it would otherwise occur based on the flow of durations - information that is specific to a performance. They are expressed in terms of divisions, either positive or negative. A note that starts a tie should not have a release attribute, and a note that stops a tie should not have an attack attribute. If a note is played only one time through a repeat, the time-only attribute shows which time to play the note. The pizzicato attribute is used when just this note is sounded pizzicato, vs. the pizzicato element which changes overall playback between pizzicato and arco.
+data Note = 
+      Note {
+          noteDynamics :: (Maybe NonNegativeDecimal) -- ^ /dynamics/ attribute
+        , noteEndDynamics :: (Maybe NonNegativeDecimal) -- ^ /end-dynamics/ attribute
+        , noteAttack :: (Maybe Divisions) -- ^ /attack/ attribute
+        , noteRelease :: (Maybe Divisions) -- ^ /release/ attribute
+        , noteTimeOnly :: (Maybe Token) -- ^ /time-only/ attribute
+        , notePizzicato :: (Maybe YesNo) -- ^ /pizzicato/ attribute
+        , noteDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , noteDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , noteRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , noteRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , noteFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , noteFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , noteFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , noteFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , noteColor :: (Maybe Color) -- ^ /color/ attribute
+        , notePrintDot :: (Maybe YesNo) -- ^ /print-dot/ attribute
+        , notePrintLyric :: (Maybe YesNo) -- ^ /print-lyric/ attribute
+        , notePrintObject :: (Maybe YesNo) -- ^ /print-object/ attribute
+        , notePrintSpacing :: (Maybe YesNo) -- ^ /print-spacing/ attribute
+        , noteNote :: ChxNote
+        , noteInstrument :: (Maybe Instrument) -- ^ /instrument/ child element
+        , noteEditorialVoice :: EditorialVoice
+        , noteType :: (Maybe NoteType) -- ^ /type/ child element
+        , noteDot :: [EmptyPlacement] -- ^ /dot/ child element
+        , noteAccidental :: (Maybe Accidental) -- ^ /accidental/ child element
+        , noteTimeModification :: (Maybe TimeModification) -- ^ /time-modification/ child element
+        , noteStem :: (Maybe Stem) -- ^ /stem/ child element
+        , noteNotehead :: (Maybe Notehead) -- ^ /notehead/ child element
+        , noteStaff :: (Maybe Staff)
+        , noteBeam :: [Beam] -- ^ /beam/ child element
+        , noteNotations :: [Notations] -- ^ /notations/ child element
+        , noteLyric :: [Lyric] -- ^ /lyric/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Note where
+    emitXml (Note a b c d e f g h i j k l m n o p q r s t u v w x y z a1 b1 c1 d1 e1 f1) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "dynamics" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "end-dynamics" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "attack" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "release" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "time-only" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "pizzicato" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) l] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) m] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) n] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) o] ++
+        [maybe XEmpty (XAttr (QN "print-dot" Nothing).emitXml) p] ++
+        [maybe XEmpty (XAttr (QN "print-lyric" Nothing).emitXml) q] ++
+        [maybe XEmpty (XAttr (QN "print-object" Nothing).emitXml) r] ++
+        [maybe XEmpty (XAttr (QN "print-spacing" Nothing).emitXml) s])
+        ([emitXml t] ++
+        [maybe XEmpty (XElement (QN "instrument" Nothing).emitXml) u] ++
+        [emitXml v] ++
+        [maybe XEmpty (XElement (QN "type" Nothing).emitXml) w] ++
+        map (XElement (QN "dot" Nothing).emitXml) x ++
+        [maybe XEmpty (XElement (QN "accidental" Nothing).emitXml) y] ++
+        [maybe XEmpty (XElement (QN "time-modification" Nothing).emitXml) z] ++
+        [maybe XEmpty (XElement (QN "stem" Nothing).emitXml) a1] ++
+        [maybe XEmpty (XElement (QN "notehead" Nothing).emitXml) b1] ++
+        [emitXml c1] ++
+        map (XElement (QN "beam" Nothing).emitXml) d1 ++
+        map (XElement (QN "notations" Nothing).emitXml) e1 ++
+        map (XElement (QN "lyric" Nothing).emitXml) f1)
+parseNote :: P.XParse Note
+parseNote = 
+      Note
+        <$> P.optional (P.xattr (P.name "dynamics") >>= parseNonNegativeDecimal)
+        <*> P.optional (P.xattr (P.name "end-dynamics") >>= parseNonNegativeDecimal)
+        <*> P.optional (P.xattr (P.name "attack") >>= parseDivisions)
+        <*> P.optional (P.xattr (P.name "release") >>= parseDivisions)
+        <*> P.optional (P.xattr (P.name "time-only") >>= parseToken)
+        <*> P.optional (P.xattr (P.name "pizzicato") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "print-dot") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "print-lyric") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "print-object") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "print-spacing") >>= parseYesNo)
+        <*> parseChxNote
+        <*> P.optional (P.xchild (P.name "instrument") (parseInstrument))
+        <*> parseEditorialVoice
+        <*> P.optional (P.xchild (P.name "type") (parseNoteType))
+        <*> P.many (P.xchild (P.name "dot") (parseEmptyPlacement))
+        <*> P.optional (P.xchild (P.name "accidental") (parseAccidental))
+        <*> P.optional (P.xchild (P.name "time-modification") (parseTimeModification))
+        <*> P.optional (P.xchild (P.name "stem") (parseStem))
+        <*> P.optional (P.xchild (P.name "notehead") (parseNotehead))
+        <*> P.optional (parseStaff)
+        <*> P.many (P.xchild (P.name "beam") (parseBeam))
+        <*> P.many (P.xchild (P.name "notations") (parseNotations))
+        <*> P.many (P.xchild (P.name "lyric") (parseLyric))
+
+-- | Smart constructor for 'Note'
+mkNote :: ChxNote -> EditorialVoice -> Note
+mkNote t v = Note Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing t Nothing v Nothing [] Nothing Nothing Nothing Nothing Nothing [] [] []
+
+-- | @note-size@ /(complex)/
+--
+-- The note-size type indicates the percentage of the regular note size to use for notes with a cue and large size as defined in the type element. The grace type is used for notes of cue size that that include a grace element. The cue type is used for all other notes with cue size, whether defined explicitly or implicitly via a cue element. The large type is used for notes of large size. The text content represent the numeric percentage. A value of 100 would be identical to the size of a regular note as defined by the music font.
+data NoteSize = 
+      NoteSize {
+          noteSizeNonNegativeDecimal :: NonNegativeDecimal -- ^ text content
+        , noteSizeType :: NoteSizeType -- ^ /type/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml NoteSize where
+    emitXml (NoteSize a b) =
+      XContent (emitXml a)
+        ([XAttr (QN "type" Nothing) (emitXml b)])
+        []
+parseNoteSize :: P.XParse NoteSize
+parseNoteSize = 
+      NoteSize
+        <$> (P.xtext >>= parseNonNegativeDecimal)
+        <*> (P.xattr (P.name "type") >>= parseNoteSizeType)
+
+-- | Smart constructor for 'NoteSize'
+mkNoteSize :: NonNegativeDecimal -> NoteSizeType -> NoteSize
+mkNoteSize a b = NoteSize a b
+
+-- | @note-type@ /(complex)/
+--
+-- The note-type type indicates the graphic note type. Values range from 256th to long. The size attribute indicates full, cue, or large size, with full the default for regular notes and cue the default for cue and grace notes.
+data NoteType = 
+      NoteType {
+          noteTypeNoteTypeValue :: NoteTypeValue -- ^ text content
+        , noteTypeSize :: (Maybe SymbolSize) -- ^ /size/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml NoteType where
+    emitXml (NoteType a b) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "size" Nothing).emitXml) b])
+        []
+parseNoteType :: P.XParse NoteType
+parseNoteType = 
+      NoteType
+        <$> (P.xtext >>= parseNoteTypeValue)
+        <*> P.optional (P.xattr (P.name "size") >>= parseSymbolSize)
+
+-- | Smart constructor for 'NoteType'
+mkNoteType :: NoteTypeValue -> NoteType
+mkNoteType a = NoteType a Nothing
+
+-- | @notehead@ /(complex)/
+--
+-- The notehead element indicates shapes other than the open and closed ovals associated with note durations.
+-- 	
+-- For the enclosed shapes, the default is to be hollow for half notes and longer, and filled otherwise. The filled attribute can be set to change this if needed.
+-- 	
+-- If the parentheses attribute is set to yes, the notehead is parenthesized. It is no by default.
+data Notehead = 
+      Notehead {
+          noteheadNoteheadValue :: NoteheadValue -- ^ text content
+        , noteheadFilled :: (Maybe YesNo) -- ^ /filled/ attribute
+        , noteheadParentheses :: (Maybe YesNo) -- ^ /parentheses/ attribute
+        , noteheadFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , noteheadFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , noteheadFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , noteheadFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , noteheadColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Notehead where
+    emitXml (Notehead a b c d e f g h) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "filled" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "parentheses" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) h])
+        []
+parseNotehead :: P.XParse Notehead
+parseNotehead = 
+      Notehead
+        <$> (P.xtext >>= parseNoteheadValue)
+        <*> P.optional (P.xattr (P.name "filled") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "parentheses") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'Notehead'
+mkNotehead :: NoteheadValue -> Notehead
+mkNotehead a = Notehead a Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @octave-shift@ /(complex)/
+--
+-- The octave shift type indicates where notes are shifted up or down from their true pitched values because of printing difficulty. Thus a treble clef line noted with 8va will be indicated with an octave-shift down from the pitch data indicated in the notes. A size of 8 indicates one octave; a size of 15 indicates two octaves.
+data OctaveShift = 
+      OctaveShift {
+          octaveShiftType :: UpDownStop -- ^ /type/ attribute
+        , octaveShiftNumber :: (Maybe NumberLevel) -- ^ /number/ attribute
+        , octaveShiftSize :: (Maybe PositiveInteger) -- ^ /size/ attribute
+        , octaveShiftDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , octaveShiftDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , octaveShiftRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , octaveShiftRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , octaveShiftFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , octaveShiftFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , octaveShiftFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , octaveShiftFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , octaveShiftColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml OctaveShift where
+    emitXml (OctaveShift a b c d e f g h i j k l) =
+      XContent XEmpty
+        ([XAttr (QN "type" Nothing) (emitXml a)] ++
+        [maybe XEmpty (XAttr (QN "number" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "size" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) l])
+        []
+parseOctaveShift :: P.XParse OctaveShift
+parseOctaveShift = 
+      OctaveShift
+        <$> (P.xattr (P.name "type") >>= parseUpDownStop)
+        <*> P.optional (P.xattr (P.name "number") >>= parseNumberLevel)
+        <*> P.optional (P.xattr (P.name "size") >>= parsePositiveInteger)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'OctaveShift'
+mkOctaveShift :: UpDownStop -> OctaveShift
+mkOctaveShift a = OctaveShift a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @offset@ /(complex)/
+--
+-- An offset is represented in terms of divisions, and indicates where the direction will appear relative to the current musical location. This affects the visual appearance of the direction. If the sound attribute is "yes", then the offset affects playback too. If the sound attribute is "no", then any sound associated with the direction takes effect at the current location. The sound attribute is "no" by default for compatibility with earlier versions of the MusicXML format. If an element within a direction includes a default-x attribute, the offset value will be ignored when determining the appearance of that element.
+data Offset = 
+      Offset {
+          offsetDivisions :: Divisions -- ^ text content
+        , offsetSound :: (Maybe YesNo) -- ^ /sound/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Offset where
+    emitXml (Offset a b) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "sound" Nothing).emitXml) b])
+        []
+parseOffset :: P.XParse Offset
+parseOffset = 
+      Offset
+        <$> (P.xtext >>= parseDivisions)
+        <*> P.optional (P.xattr (P.name "sound") >>= parseYesNo)
+
+-- | Smart constructor for 'Offset'
+mkOffset :: Divisions -> Offset
+mkOffset a = Offset a Nothing
+
+-- | @opus@ /(complex)/
+--
+-- The opus type represents a link to a MusicXML opus document that composes multiple MusicXML scores into a collection.
+data Opus = 
+      Opus {
+          opusHref :: String -- ^ /xlink:href/ attribute
+        , opusType :: (Maybe Type) -- ^ /xlink:type/ attribute
+        , opusRole :: (Maybe Token) -- ^ /xlink:role/ attribute
+        , opusTitle :: (Maybe Token) -- ^ /xlink:title/ attribute
+        , opusShow :: (Maybe SmpShow) -- ^ /xlink:show/ attribute
+        , opusActuate :: (Maybe Actuate) -- ^ /xlink:actuate/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Opus where
+    emitXml (Opus a b c d e f) =
+      XContent XEmpty
+        ([XAttr (QN "href" (Just "xlink")) (emitXml a)] ++
+        [maybe XEmpty (XAttr (QN "type" (Just "xlink")).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "role" (Just "xlink")).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "title" (Just "xlink")).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "show" (Just "xlink")).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "actuate" (Just "xlink")).emitXml) f])
+        []
+parseOpus :: P.XParse Opus
+parseOpus = 
+      Opus
+        <$> (P.xattr (P.name "xlink:href") >>= return)
+        <*> P.optional (P.xattr (P.name "xlink:type") >>= parseType)
+        <*> P.optional (P.xattr (P.name "xlink:role") >>= parseToken)
+        <*> P.optional (P.xattr (P.name "xlink:title") >>= parseToken)
+        <*> P.optional (P.xattr (P.name "xlink:show") >>= parseSmpShow)
+        <*> P.optional (P.xattr (P.name "xlink:actuate") >>= parseActuate)
+
+-- | Smart constructor for 'Opus'
+mkOpus :: String -> Opus
+mkOpus a = Opus a Nothing Nothing Nothing Nothing Nothing
+
+-- | @ornaments@ /(complex)/
+--
+-- Ornaments can be any of several types, followed optionally by accidentals. The accidental-mark element's content is represented the same as an accidental element, but with a different name to reflect the different musical meaning.
+data Ornaments = 
+      Ornaments {
+          ornamentsOrnaments :: [SeqOrnaments]
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Ornaments where
+    emitXml (Ornaments a) =
+      XReps [emitXml a]
+parseOrnaments :: P.XParse Ornaments
+parseOrnaments = 
+      Ornaments
+        <$> P.many (parseSeqOrnaments)
+
+-- | Smart constructor for 'Ornaments'
+mkOrnaments :: Ornaments
+mkOrnaments = Ornaments []
+
+-- | @other-appearance@ /(complex)/
+--
+-- The other-appearance type is used to define any graphical settings not yet in the current version of the MusicXML format. This allows extended representation, though without application interoperability.
+data OtherAppearance = 
+      OtherAppearance {
+          otherAppearanceString :: String -- ^ text content
+        , otherAppearanceType :: Token -- ^ /type/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml OtherAppearance where
+    emitXml (OtherAppearance a b) =
+      XContent (emitXml a)
+        ([XAttr (QN "type" Nothing) (emitXml b)])
+        []
+parseOtherAppearance :: P.XParse OtherAppearance
+parseOtherAppearance = 
+      OtherAppearance
+        <$> (P.xtext >>= return)
+        <*> (P.xattr (P.name "type") >>= parseToken)
+
+-- | Smart constructor for 'OtherAppearance'
+mkOtherAppearance :: String -> Token -> OtherAppearance
+mkOtherAppearance a b = OtherAppearance a b
+
+-- | @other-direction@ /(complex)/
+--
+-- The other-direction type is used to define any direction symbols not yet in the current version of the MusicXML format. This allows extended representation, though without application interoperability.
+data OtherDirection = 
+      OtherDirection {
+          otherDirectionString :: String -- ^ text content
+        , otherDirectionPrintObject :: (Maybe YesNo) -- ^ /print-object/ attribute
+        , otherDirectionDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , otherDirectionDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , otherDirectionRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , otherDirectionRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , otherDirectionFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , otherDirectionFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , otherDirectionFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , otherDirectionFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , otherDirectionColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml OtherDirection where
+    emitXml (OtherDirection a b c d e f g h i j k) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "print-object" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) k])
+        []
+parseOtherDirection :: P.XParse OtherDirection
+parseOtherDirection = 
+      OtherDirection
+        <$> (P.xtext >>= return)
+        <*> P.optional (P.xattr (P.name "print-object") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'OtherDirection'
+mkOtherDirection :: String -> OtherDirection
+mkOtherDirection a = OtherDirection a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @other-notation@ /(complex)/
+--
+-- The other-notation type is used to define any notations not yet in the MusicXML format. This allows extended representation, though without application interoperability. It handles notations where more specific extension elements such as other-dynamics and other-technical are not appropriate.
+data OtherNotation = 
+      OtherNotation {
+          otherNotationString :: String -- ^ text content
+        , otherNotationType :: StartStopSingle -- ^ /type/ attribute
+        , otherNotationNumber :: (Maybe NumberLevel) -- ^ /number/ attribute
+        , otherNotationPrintObject :: (Maybe YesNo) -- ^ /print-object/ attribute
+        , otherNotationDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , otherNotationDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , otherNotationRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , otherNotationRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , otherNotationFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , otherNotationFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , otherNotationFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , otherNotationFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , otherNotationColor :: (Maybe Color) -- ^ /color/ attribute
+        , otherNotationPlacement :: (Maybe AboveBelow) -- ^ /placement/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml OtherNotation where
+    emitXml (OtherNotation a b c d e f g h i j k l m n) =
+      XContent (emitXml a)
+        ([XAttr (QN "type" Nothing) (emitXml b)] ++
+        [maybe XEmpty (XAttr (QN "number" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "print-object" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) l] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) m] ++
+        [maybe XEmpty (XAttr (QN "placement" Nothing).emitXml) n])
+        []
+parseOtherNotation :: P.XParse OtherNotation
+parseOtherNotation = 
+      OtherNotation
+        <$> (P.xtext >>= return)
+        <*> (P.xattr (P.name "type") >>= parseStartStopSingle)
+        <*> P.optional (P.xattr (P.name "number") >>= parseNumberLevel)
+        <*> P.optional (P.xattr (P.name "print-object") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "placement") >>= parseAboveBelow)
+
+-- | Smart constructor for 'OtherNotation'
+mkOtherNotation :: String -> StartStopSingle -> OtherNotation
+mkOtherNotation a b = OtherNotation a b Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @page-layout@ /(complex)/
+--
+-- Page layout can be defined both in score-wide defaults and in the print element. Page margins are specified either for both even and odd pages, or via separate odd and even page number values. The type is not needed when used as part of a print element. If omitted when used in the defaults element, "both" is the default.
+data PageLayout = 
+      PageLayout {
+          pageLayoutPageLayout :: (Maybe SeqPageLayout)
+        , pageLayoutPageMargins :: [PageMargins] -- ^ /page-margins/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml PageLayout where
+    emitXml (PageLayout a b) =
+      XContent XEmpty
+        []
+        ([emitXml a] ++
+        map (XElement (QN "page-margins" Nothing).emitXml) b)
+parsePageLayout :: P.XParse PageLayout
+parsePageLayout = 
+      PageLayout
+        <$> P.optional (parseSeqPageLayout)
+        <*> P.many (P.xchild (P.name "page-margins") (parsePageMargins))
+
+-- | Smart constructor for 'PageLayout'
+mkPageLayout :: PageLayout
+mkPageLayout = PageLayout Nothing []
+
+-- | @page-margins@ /(complex)/
+--
+-- Page margins are specified either for both even and odd pages, or via separate odd and even page number values. The type attribute is not needed when used as part of a print element. If omitted when the page-margins type is used in the defaults element, "both" is the default value.
+data PageMargins = 
+      PageMargins {
+          pageMarginsType :: (Maybe MarginType) -- ^ /type/ attribute
+        , pageMarginsAllMargins :: AllMargins
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml PageMargins where
+    emitXml (PageMargins a b) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "type" Nothing).emitXml) a])
+        ([emitXml b])
+parsePageMargins :: P.XParse PageMargins
+parsePageMargins = 
+      PageMargins
+        <$> P.optional (P.xattr (P.name "type") >>= parseMarginType)
+        <*> parseAllMargins
+
+-- | Smart constructor for 'PageMargins'
+mkPageMargins :: AllMargins -> PageMargins
+mkPageMargins b = PageMargins Nothing b
+
+-- | @part@ /(complex)/
+data CmpPart = 
+      CmpPart {
+          partId :: IDREF -- ^ /id/ attribute
+        , partMeasure :: [Measure] -- ^ /measure/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml CmpPart where
+    emitXml (CmpPart a b) =
+      XContent XEmpty
+        ([XAttr (QN "id" Nothing) (emitXml a)])
+        (map (XElement (QN "measure" Nothing).emitXml) b)
+parseCmpPart :: P.XParse CmpPart
+parseCmpPart = 
+      CmpPart
+        <$> (P.xattr (P.name "id") >>= parseIDREF)
+        <*> P.many (P.xchild (P.name "measure") (parseMeasure))
+
+-- | Smart constructor for 'CmpPart'
+mkCmpPart :: IDREF -> CmpPart
+mkCmpPart a = CmpPart a []
+
+-- | @part@ /(complex)/
+
+-- mangled: 1
+data Part = 
+      Part {
+          cmppartId :: IDREF -- ^ /id/ attribute
+        , partMusicData :: MusicData
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Part where
+    emitXml (Part a b) =
+      XContent XEmpty
+        ([XAttr (QN "id" Nothing) (emitXml a)])
+        ([emitXml b])
+parsePart :: P.XParse Part
+parsePart = 
+      Part
+        <$> (P.xattr (P.name "id") >>= parseIDREF)
+        <*> parseMusicData
+
+-- | Smart constructor for 'Part'
+mkPart :: IDREF -> MusicData -> Part
+mkPart a b = Part a b
+
+-- | @part-group@ /(complex)/
+--
+-- The part-group element indicates groupings of parts in the score, usually indicated by braces and brackets. Braces that are used for multi-staff parts should be defined in the attributes element for that part. The part-group start element appears before the first score-part in the group. The part-group stop element appears after the last score-part in the group.
+-- 	
+-- The number attribute is used to distinguish overlapping and nested part-groups, not the sequence of groups. As with parts, groups can have a name and abbreviation. Values for the child elements are ignored at the stop of a group. 
+-- 	
+-- A part-group element is not needed for a single multi-staff part. By default, multi-staff parts include a brace symbol and (if appropriate given the bar-style) common barlines. The symbol formatting for a multi-staff part can be more fully specified using the part-symbol element.
+data PartGroup = 
+      PartGroup {
+          partGroupType :: StartStop -- ^ /type/ attribute
+        , partGroupNumber :: (Maybe Token) -- ^ /number/ attribute
+        , partGroupGroupName :: (Maybe GroupName) -- ^ /group-name/ child element
+        , partGroupGroupNameDisplay :: (Maybe NameDisplay) -- ^ /group-name-display/ child element
+        , partGroupGroupAbbreviation :: (Maybe GroupName) -- ^ /group-abbreviation/ child element
+        , partGroupGroupAbbreviationDisplay :: (Maybe NameDisplay) -- ^ /group-abbreviation-display/ child element
+        , partGroupGroupSymbol :: (Maybe GroupSymbol) -- ^ /group-symbol/ child element
+        , partGroupGroupBarline :: (Maybe GroupBarline) -- ^ /group-barline/ child element
+        , partGroupGroupTime :: (Maybe Empty) -- ^ /group-time/ child element
+        , partGroupEditorial :: Editorial
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml PartGroup where
+    emitXml (PartGroup a b c d e f g h i j) =
+      XContent XEmpty
+        ([XAttr (QN "type" Nothing) (emitXml a)] ++
+        [maybe XEmpty (XAttr (QN "number" Nothing).emitXml) b])
+        ([maybe XEmpty (XElement (QN "group-name" Nothing).emitXml) c] ++
+        [maybe XEmpty (XElement (QN "group-name-display" Nothing).emitXml) d] ++
+        [maybe XEmpty (XElement (QN "group-abbreviation" Nothing).emitXml) e] ++
+        [maybe XEmpty (XElement (QN "group-abbreviation-display" Nothing).emitXml) f] ++
+        [maybe XEmpty (XElement (QN "group-symbol" Nothing).emitXml) g] ++
+        [maybe XEmpty (XElement (QN "group-barline" Nothing).emitXml) h] ++
+        [maybe XEmpty (XElement (QN "group-time" Nothing).emitXml) i] ++
+        [emitXml j])
+parsePartGroup :: P.XParse PartGroup
+parsePartGroup = 
+      PartGroup
+        <$> (P.xattr (P.name "type") >>= parseStartStop)
+        <*> P.optional (P.xattr (P.name "number") >>= parseToken)
+        <*> P.optional (P.xchild (P.name "group-name") (parseGroupName))
+        <*> P.optional (P.xchild (P.name "group-name-display") (parseNameDisplay))
+        <*> P.optional (P.xchild (P.name "group-abbreviation") (parseGroupName))
+        <*> P.optional (P.xchild (P.name "group-abbreviation-display") (parseNameDisplay))
+        <*> P.optional (P.xchild (P.name "group-symbol") (parseGroupSymbol))
+        <*> P.optional (P.xchild (P.name "group-barline") (parseGroupBarline))
+        <*> P.optional (P.xchild (P.name "group-time") (parseEmpty))
+        <*> parseEditorial
+
+-- | Smart constructor for 'PartGroup'
+mkPartGroup :: StartStop -> Editorial -> PartGroup
+mkPartGroup a j = PartGroup a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing j
+
+-- | @part-list@ /(complex)/
+--
+-- The part-list identifies the different musical parts in this movement. Each part has an ID that is used later within the musical data. Since parts may be encoded separately and combined later, identification elements are present at both the score and score-part levels. There must be at least one score-part, combined as desired with part-group elements that indicate braces and brackets. Parts are ordered from top to bottom in a score based on the order in which they appear in the part-list.
+data PartList = 
+      PartList {
+          partListPartGroup :: [GrpPartGroup]
+        , partListScorePart :: ScorePart
+        , partListPartList :: [ChxPartList]
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml PartList where
+    emitXml (PartList a b c) =
+      XReps [emitXml a,emitXml b,emitXml c]
+parsePartList :: P.XParse PartList
+parsePartList = 
+      PartList
+        <$> P.many (parseGrpPartGroup)
+        <*> parseScorePart
+        <*> P.many (parseChxPartList)
+
+-- | Smart constructor for 'PartList'
+mkPartList :: ScorePart -> PartList
+mkPartList b = PartList [] b []
+
+-- | @part-name@ /(complex)/
+--
+-- The part-name type describes the name or abbreviation of a score-part element. Formatting attributes for the part-name element are deprecated in Version 2.0 in favor of the new part-name-display and part-abbreviation-display elements.
+data PartName = 
+      PartName {
+          partNameString :: String -- ^ text content
+        , partNameDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , partNameDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , partNameRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , partNameRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , partNameFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , partNameFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , partNameFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , partNameFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , partNameColor :: (Maybe Color) -- ^ /color/ attribute
+        , partNamePrintObject :: (Maybe YesNo) -- ^ /print-object/ attribute
+        , partNameJustify :: (Maybe LeftCenterRight) -- ^ /justify/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml PartName where
+    emitXml (PartName a b c d e f g h i j k l) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "print-object" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "justify" Nothing).emitXml) l])
+        []
+parsePartName :: P.XParse PartName
+parsePartName = 
+      PartName
+        <$> (P.xtext >>= return)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "print-object") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "justify") >>= parseLeftCenterRight)
+
+-- | Smart constructor for 'PartName'
+mkPartName :: String -> PartName
+mkPartName a = PartName a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @part-symbol@ /(complex)/
+--
+-- The part-symbol element indicates how a symbol for a multi-staff part is indicated in the score. Values include none, brace, line, and bracket; brace is the default. The top-staff and bottom-staff elements are used when the brace does not extend across the entire part. For example, in a 3-staff organ part, the top-staff will typically be 1 for the right hand, while the bottom-staff will typically be 2 for the left hand. Staff 3 for the pedals is usually outside the brace.
+data PartSymbol = 
+      PartSymbol {
+          partSymbolGroupSymbolValue :: GroupSymbolValue -- ^ text content
+        , partSymbolTopStaff :: (Maybe StaffNumber) -- ^ /top-staff/ attribute
+        , partSymbolBottomStaff :: (Maybe StaffNumber) -- ^ /bottom-staff/ attribute
+        , partSymbolDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , partSymbolDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , partSymbolRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , partSymbolRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , partSymbolColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml PartSymbol where
+    emitXml (PartSymbol a b c d e f g h) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "top-staff" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "bottom-staff" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) h])
+        []
+parsePartSymbol :: P.XParse PartSymbol
+parsePartSymbol = 
+      PartSymbol
+        <$> (P.xtext >>= parseGroupSymbolValue)
+        <*> P.optional (P.xattr (P.name "top-staff") >>= parseStaffNumber)
+        <*> P.optional (P.xattr (P.name "bottom-staff") >>= parseStaffNumber)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'PartSymbol'
+mkPartSymbol :: GroupSymbolValue -> PartSymbol
+mkPartSymbol a = PartSymbol a Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @pedal@ /(complex)/
+--
+-- The pedal type represents piano pedal marks. The line attribute is yes if pedal lines are used, no if Ped and * signs are used. The change type is used with line set to yes.
+data Pedal = 
+      Pedal {
+          pedalType :: StartStopChange -- ^ /type/ attribute
+        , pedalLine :: (Maybe YesNo) -- ^ /line/ attribute
+        , pedalDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , pedalDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , pedalRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , pedalRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , pedalFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , pedalFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , pedalFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , pedalFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , pedalColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Pedal where
+    emitXml (Pedal a b c d e f g h i j k) =
+      XContent XEmpty
+        ([XAttr (QN "type" Nothing) (emitXml a)] ++
+        [maybe XEmpty (XAttr (QN "line" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) k])
+        []
+parsePedal :: P.XParse Pedal
+parsePedal = 
+      Pedal
+        <$> (P.xattr (P.name "type") >>= parseStartStopChange)
+        <*> P.optional (P.xattr (P.name "line") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'Pedal'
+mkPedal :: StartStopChange -> Pedal
+mkPedal a = Pedal a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @pedal-tuning@ /(complex)/
+--
+-- The pedal-tuning type specifies the tuning of a single harp pedal.
+data PedalTuning = 
+      PedalTuning {
+          pedalTuningPedalStep :: Step -- ^ /pedal-step/ child element
+        , pedalTuningPedalAlter :: Semitones -- ^ /pedal-alter/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml PedalTuning where
+    emitXml (PedalTuning a b) =
+      XContent XEmpty
+        []
+        ([XElement (QN "pedal-step" Nothing) (emitXml a)] ++
+        [XElement (QN "pedal-alter" Nothing) (emitXml b)])
+parsePedalTuning :: P.XParse PedalTuning
+parsePedalTuning = 
+      PedalTuning
+        <$> (P.xchild (P.name "pedal-step") (P.xtext >>= parseStep))
+        <*> (P.xchild (P.name "pedal-alter") (P.xtext >>= parseSemitones))
+
+-- | Smart constructor for 'PedalTuning'
+mkPedalTuning :: Step -> Semitones -> PedalTuning
+mkPedalTuning a b = PedalTuning a b
+
+-- | @per-minute@ /(complex)/
+--
+-- The per-minute type can be a number, or a text description including numbers. If a font is specified, it overrides the font specified for the overall metronome element. This allows separate specification of a music font for the beat-unit and a text font for the numeric value, in cases where a single metronome font is not used.
+data PerMinute = 
+      PerMinute {
+          perMinuteString :: String -- ^ text content
+        , perMinuteFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , perMinuteFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , perMinuteFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , perMinuteFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml PerMinute where
+    emitXml (PerMinute a b c d e) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) e])
+        []
+parsePerMinute :: P.XParse PerMinute
+parsePerMinute = 
+      PerMinute
+        <$> (P.xtext >>= return)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+
+-- | Smart constructor for 'PerMinute'
+mkPerMinute :: String -> PerMinute
+mkPerMinute a = PerMinute a Nothing Nothing Nothing Nothing
+
+-- | @pitch@ /(complex)/
+--
+-- Pitch is represented as a combination of the step of the diatonic scale, the chromatic alteration, and the octave.
+data Pitch = 
+      Pitch {
+          pitchStep :: Step -- ^ /step/ child element
+        , pitchAlter :: (Maybe Semitones) -- ^ /alter/ child element
+        , pitchOctave :: Octave -- ^ /octave/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Pitch where
+    emitXml (Pitch a b c) =
+      XContent XEmpty
+        []
+        ([XElement (QN "step" Nothing) (emitXml a)] ++
+        [maybe XEmpty (XElement (QN "alter" Nothing).emitXml) b] ++
+        [XElement (QN "octave" Nothing) (emitXml c)])
+parsePitch :: P.XParse Pitch
+parsePitch = 
+      Pitch
+        <$> (P.xchild (P.name "step") (P.xtext >>= parseStep))
+        <*> P.optional (P.xchild (P.name "alter") (P.xtext >>= parseSemitones))
+        <*> (P.xchild (P.name "octave") (P.xtext >>= parseOctave))
+
+-- | Smart constructor for 'Pitch'
+mkPitch :: Step -> Octave -> Pitch
+mkPitch a c = Pitch a Nothing c
+
+-- | @placement-text@ /(complex)/
+--
+-- The placement-text type represents a text element with print-style and placement attribute groups.
+data PlacementText = 
+      PlacementText {
+          placementTextString :: String -- ^ text content
+        , placementTextDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , placementTextDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , placementTextRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , placementTextRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , placementTextFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , placementTextFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , placementTextFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , placementTextFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , placementTextColor :: (Maybe Color) -- ^ /color/ attribute
+        , placementTextPlacement :: (Maybe AboveBelow) -- ^ /placement/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml PlacementText where
+    emitXml (PlacementText a b c d e f g h i j k) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "placement" Nothing).emitXml) k])
+        []
+parsePlacementText :: P.XParse PlacementText
+parsePlacementText = 
+      PlacementText
+        <$> (P.xtext >>= return)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "placement") >>= parseAboveBelow)
+
+-- | Smart constructor for 'PlacementText'
+mkPlacementText :: String -> PlacementText
+mkPlacementText a = PlacementText a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @print@ /(complex)/
+--
+-- The print type contains general printing parameters, including the layout elements defined in the layout.mod file. The part-name-display and part-abbreviation-display elements used in the score.mod file may also be used here to change how a part name or abbreviation is displayed over the course of a piece. They take effect when the current measure or a succeeding measure starts a new system.
+-- 	
+-- Layout elements in a print statement only apply to the current page, system, staff, or measure. Music that follows continues to take the default values from the layout included in the defaults element.
+data Print = 
+      Print {
+          printStaffSpacing :: (Maybe Tenths) -- ^ /staff-spacing/ attribute
+        , printNewSystem :: (Maybe YesNo) -- ^ /new-system/ attribute
+        , printNewPage :: (Maybe YesNo) -- ^ /new-page/ attribute
+        , printBlankPage :: (Maybe PositiveInteger) -- ^ /blank-page/ attribute
+        , printPageNumber :: (Maybe Token) -- ^ /page-number/ attribute
+        , printLayout :: Layout
+        , printMeasureLayout :: (Maybe MeasureLayout) -- ^ /measure-layout/ child element
+        , printMeasureNumbering :: (Maybe MeasureNumbering) -- ^ /measure-numbering/ child element
+        , printPartNameDisplay :: (Maybe NameDisplay) -- ^ /part-name-display/ child element
+        , printPartAbbreviationDisplay :: (Maybe NameDisplay) -- ^ /part-abbreviation-display/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Print where
+    emitXml (Print a b c d e f g h i j) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "staff-spacing" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "new-system" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "new-page" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "blank-page" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "page-number" Nothing).emitXml) e])
+        ([emitXml f] ++
+        [maybe XEmpty (XElement (QN "measure-layout" Nothing).emitXml) g] ++
+        [maybe XEmpty (XElement (QN "measure-numbering" Nothing).emitXml) h] ++
+        [maybe XEmpty (XElement (QN "part-name-display" Nothing).emitXml) i] ++
+        [maybe XEmpty (XElement (QN "part-abbreviation-display" Nothing).emitXml) j])
+parsePrint :: P.XParse Print
+parsePrint = 
+      Print
+        <$> P.optional (P.xattr (P.name "staff-spacing") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "new-system") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "new-page") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "blank-page") >>= parsePositiveInteger)
+        <*> P.optional (P.xattr (P.name "page-number") >>= parseToken)
+        <*> parseLayout
+        <*> P.optional (P.xchild (P.name "measure-layout") (parseMeasureLayout))
+        <*> P.optional (P.xchild (P.name "measure-numbering") (parseMeasureNumbering))
+        <*> P.optional (P.xchild (P.name "part-name-display") (parseNameDisplay))
+        <*> P.optional (P.xchild (P.name "part-abbreviation-display") (parseNameDisplay))
+
+-- | Smart constructor for 'Print'
+mkPrint :: Layout -> Print
+mkPrint f = Print Nothing Nothing Nothing Nothing Nothing f Nothing Nothing Nothing Nothing
+
+-- | @rehearsal@ /(complex)/
+--
+-- The rehearsal type specifies a rehearsal mark. Language is Italian ("it") by default. Enclosure is square by default.
+data Rehearsal = 
+      Rehearsal {
+          rehearsalString :: String -- ^ text content
+        , rehearsalLang :: (Maybe Lang) -- ^ /xml:lang/ attribute
+        , rehearsalEnclosure :: (Maybe RehearsalEnclosure) -- ^ /enclosure/ attribute
+        , rehearsalDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , rehearsalDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , rehearsalRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , rehearsalRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , rehearsalFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , rehearsalFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , rehearsalFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , rehearsalFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , rehearsalColor :: (Maybe Color) -- ^ /color/ attribute
+        , rehearsalUnderline :: (Maybe NumberOfLines) -- ^ /underline/ attribute
+        , rehearsalOverline :: (Maybe NumberOfLines) -- ^ /overline/ attribute
+        , rehearsalLineThrough :: (Maybe NumberOfLines) -- ^ /line-through/ attribute
+        , rehearsalDir :: (Maybe TextDirection) -- ^ /dir/ attribute
+        , rehearsalRotation :: (Maybe RotationDegrees) -- ^ /rotation/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Rehearsal where
+    emitXml (Rehearsal a b c d e f g h i j k l m n o p q) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "lang" (Just "xml")).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "enclosure" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) l] ++
+        [maybe XEmpty (XAttr (QN "underline" Nothing).emitXml) m] ++
+        [maybe XEmpty (XAttr (QN "overline" Nothing).emitXml) n] ++
+        [maybe XEmpty (XAttr (QN "line-through" Nothing).emitXml) o] ++
+        [maybe XEmpty (XAttr (QN "dir" Nothing).emitXml) p] ++
+        [maybe XEmpty (XAttr (QN "rotation" Nothing).emitXml) q])
+        []
+parseRehearsal :: P.XParse Rehearsal
+parseRehearsal = 
+      Rehearsal
+        <$> (P.xtext >>= return)
+        <*> P.optional (P.xattr (P.name "xml:lang") >>= parseLang)
+        <*> P.optional (P.xattr (P.name "enclosure") >>= parseRehearsalEnclosure)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "underline") >>= parseNumberOfLines)
+        <*> P.optional (P.xattr (P.name "overline") >>= parseNumberOfLines)
+        <*> P.optional (P.xattr (P.name "line-through") >>= parseNumberOfLines)
+        <*> P.optional (P.xattr (P.name "dir") >>= parseTextDirection)
+        <*> P.optional (P.xattr (P.name "rotation") >>= parseRotationDegrees)
+
+-- | Smart constructor for 'Rehearsal'
+mkRehearsal :: String -> Rehearsal
+mkRehearsal a = Rehearsal a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @repeat@ /(complex)/
+--
+-- The repeat type represents repeat marks. The start of the repeat has a forward direction while the end of the repeat has a backward direction. Backward repeats that are not part of an ending can use the times attribute to indicate the number of times the repeated section is played.
+data Repeat = 
+      Repeat {
+          repeatDirection :: BackwardForward -- ^ /direction/ attribute
+        , repeatTimes :: (Maybe NonNegativeInteger) -- ^ /times/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Repeat where
+    emitXml (Repeat a b) =
+      XContent XEmpty
+        ([XAttr (QN "direction" Nothing) (emitXml a)] ++
+        [maybe XEmpty (XAttr (QN "times" Nothing).emitXml) b])
+        []
+parseRepeat :: P.XParse Repeat
+parseRepeat = 
+      Repeat
+        <$> (P.xattr (P.name "direction") >>= parseBackwardForward)
+        <*> P.optional (P.xattr (P.name "times") >>= parseNonNegativeInteger)
+
+-- | Smart constructor for 'Repeat'
+mkRepeat :: BackwardForward -> Repeat
+mkRepeat a = Repeat a Nothing
+
+-- | @root@ /(complex)/
+--
+-- The root type indicates a pitch like C, D, E vs. a function indication like I, II, III. It is used with chord symbols in popular music. The root element has a root-step and optional root-alter element similar to the step and alter elements, but renamed to distinguish the different musical meanings.
+data Root = 
+      Root {
+          rootRootStep :: RootStep -- ^ /root-step/ child element
+        , rootRootAlter :: (Maybe RootAlter) -- ^ /root-alter/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Root where
+    emitXml (Root a b) =
+      XContent XEmpty
+        []
+        ([XElement (QN "root-step" Nothing) (emitXml a)] ++
+        [maybe XEmpty (XElement (QN "root-alter" Nothing).emitXml) b])
+parseRoot :: P.XParse Root
+parseRoot = 
+      Root
+        <$> (P.xchild (P.name "root-step") (parseRootStep))
+        <*> P.optional (P.xchild (P.name "root-alter") (parseRootAlter))
+
+-- | Smart constructor for 'Root'
+mkRoot :: RootStep -> Root
+mkRoot a = Root a Nothing
+
+-- | @root-alter@ /(complex)/
+--
+-- The root-alter type represents the chromatic alteration of the root of the current chord within the harmony element. In some chord styles, the text for the root-step element may include root-alter information. In that case, the print-object attribute of the root-alter element can be set to no. The location attribute indicates whether the alteration should appear to the left or the right of the root-step; it is right by default.
+data RootAlter = 
+      RootAlter {
+          rootAlterSemitones :: Semitones -- ^ text content
+        , rootAlterLocation :: (Maybe LeftRight) -- ^ /location/ attribute
+        , rootAlterPrintObject :: (Maybe YesNo) -- ^ /print-object/ attribute
+        , rootAlterDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , rootAlterDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , rootAlterRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , rootAlterRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , rootAlterFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , rootAlterFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , rootAlterFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , rootAlterFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , rootAlterColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml RootAlter where
+    emitXml (RootAlter a b c d e f g h i j k l) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "location" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "print-object" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) l])
+        []
+parseRootAlter :: P.XParse RootAlter
+parseRootAlter = 
+      RootAlter
+        <$> (P.xtext >>= parseSemitones)
+        <*> P.optional (P.xattr (P.name "location") >>= parseLeftRight)
+        <*> P.optional (P.xattr (P.name "print-object") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'RootAlter'
+mkRootAlter :: Semitones -> RootAlter
+mkRootAlter a = RootAlter a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @root-step@ /(complex)/
+--
+-- The root-step type represents the pitch step of the root of the current chord within the harmony element. The text attribute indicates how the root should appear on the page if not using the element contents.
+data RootStep = 
+      RootStep {
+          rootStepStep :: Step -- ^ text content
+        , rootStepText :: (Maybe Token) -- ^ /text/ attribute
+        , rootStepDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , rootStepDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , rootStepRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , rootStepRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , rootStepFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , rootStepFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , rootStepFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , rootStepFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , rootStepColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml RootStep where
+    emitXml (RootStep a b c d e f g h i j k) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "text" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) k])
+        []
+parseRootStep :: P.XParse RootStep
+parseRootStep = 
+      RootStep
+        <$> (P.xtext >>= parseStep)
+        <*> P.optional (P.xattr (P.name "text") >>= parseToken)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'RootStep'
+mkRootStep :: Step -> RootStep
+mkRootStep a = RootStep a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @scaling@ /(complex)/
+--
+-- Margins, page sizes, and distances are all measured in tenths to keep MusicXML data in a consistent coordinate system as much as possible. The translation to absolute units is done with the scaling type, which specifies how many millimeters are equal to how many tenths. For a staff height of 7 mm, millimeters would be set to 7 while tenths is set to 40. The ability to set a formula rather than a single scaling factor helps avoid roundoff errors.
+data Scaling = 
+      Scaling {
+          scalingMillimeters :: Millimeters -- ^ /millimeters/ child element
+        , scalingTenths :: Tenths -- ^ /tenths/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Scaling where
+    emitXml (Scaling a b) =
+      XContent XEmpty
+        []
+        ([XElement (QN "millimeters" Nothing) (emitXml a)] ++
+        [XElement (QN "tenths" Nothing) (emitXml b)])
+parseScaling :: P.XParse Scaling
+parseScaling = 
+      Scaling
+        <$> (P.xchild (P.name "millimeters") (P.xtext >>= parseMillimeters))
+        <*> (P.xchild (P.name "tenths") (P.xtext >>= parseTenths))
+
+-- | Smart constructor for 'Scaling'
+mkScaling :: Millimeters -> Tenths -> Scaling
+mkScaling a b = Scaling a b
+
+-- | @scordatura@ /(complex)/
+--
+-- Scordatura string tunings are represented by a series of accord elements, similar to the staff-tuning elements. Strings are numbered from high to low.
+data Scordatura = 
+      Scordatura {
+          scordaturaAccord :: [Accord] -- ^ /accord/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Scordatura where
+    emitXml (Scordatura a) =
+      XContent XEmpty
+        []
+        (map (XElement (QN "accord" Nothing).emitXml) a)
+parseScordatura :: P.XParse Scordatura
+parseScordatura = 
+      Scordatura
+        <$> P.many (P.xchild (P.name "accord") (parseAccord))
+
+-- | Smart constructor for 'Scordatura'
+mkScordatura :: Scordatura
+mkScordatura = Scordatura []
+
+-- | @score-instrument@ /(complex)/
+--
+-- The score-instrument type represents a single instrument within a score-part. As with the score-part type, each score-instrument has a required ID attribute, a name, and an optional abbreviation.
+-- 	
+-- A score-instrument type is also required if the score specifies MIDI 1.0 channels, banks, or programs. An initial midi-instrument assignment can also be made here. MusicXML software should be able to automatically assign reasonable channels and instruments without these elements in simple cases, such as where part names match General MIDI instrument names.
+data ScoreInstrument = 
+      ScoreInstrument {
+          scoreInstrumentId :: ID -- ^ /id/ attribute
+        , scoreInstrumentInstrumentName :: String -- ^ /instrument-name/ child element
+        , scoreInstrumentInstrumentAbbreviation :: (Maybe String) -- ^ /instrument-abbreviation/ child element
+        , scoreInstrumentScoreInstrument :: (Maybe ChxScoreInstrument)
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml ScoreInstrument where
+    emitXml (ScoreInstrument a b c d) =
+      XContent XEmpty
+        ([XAttr (QN "id" Nothing) (emitXml a)])
+        ([XElement (QN "instrument-name" Nothing) (emitXml b)] ++
+        [maybe XEmpty (XElement (QN "instrument-abbreviation" Nothing).emitXml) c] ++
+        [emitXml d])
+parseScoreInstrument :: P.XParse ScoreInstrument
+parseScoreInstrument = 
+      ScoreInstrument
+        <$> (P.xattr (P.name "id") >>= parseID)
+        <*> (P.xchild (P.name "instrument-name") (P.xtext >>= return))
+        <*> P.optional (P.xchild (P.name "instrument-abbreviation") (P.xtext >>= return))
+        <*> P.optional (parseChxScoreInstrument)
+
+-- | Smart constructor for 'ScoreInstrument'
+mkScoreInstrument :: ID -> String -> ScoreInstrument
+mkScoreInstrument a b = ScoreInstrument a b Nothing Nothing
+
+-- | @score-part@ /(complex)/
+--
+-- Each MusicXML part corresponds to a track in a Standard MIDI Format 1 file. The score-instrument elements are used when there are multiple instruments per track. The midi-device element is used to make a MIDI device or port assignment for the given track. Initial midi-instrument assignments may be made here as well.
+data CmpScorePart = 
+      CmpScorePart {
+          scorePartId :: ID -- ^ /id/ attribute
+        , scorePartIdentification :: (Maybe Identification) -- ^ /identification/ child element
+        , scorePartPartName :: PartName -- ^ /part-name/ child element
+        , scorePartPartNameDisplay :: (Maybe NameDisplay) -- ^ /part-name-display/ child element
+        , scorePartPartAbbreviation :: (Maybe PartName) -- ^ /part-abbreviation/ child element
+        , scorePartPartAbbreviationDisplay :: (Maybe NameDisplay) -- ^ /part-abbreviation-display/ child element
+        , scorePartGroup :: [String] -- ^ /group/ child element
+        , scorePartScoreInstrument :: [ScoreInstrument] -- ^ /score-instrument/ child element
+        , scorePartMidiDevice :: (Maybe MidiDevice) -- ^ /midi-device/ child element
+        , scorePartMidiInstrument :: [MidiInstrument] -- ^ /midi-instrument/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml CmpScorePart where
+    emitXml (CmpScorePart a b c d e f g h i j) =
+      XContent XEmpty
+        ([XAttr (QN "id" Nothing) (emitXml a)])
+        ([maybe XEmpty (XElement (QN "identification" Nothing).emitXml) b] ++
+        [XElement (QN "part-name" Nothing) (emitXml c)] ++
+        [maybe XEmpty (XElement (QN "part-name-display" Nothing).emitXml) d] ++
+        [maybe XEmpty (XElement (QN "part-abbreviation" Nothing).emitXml) e] ++
+        [maybe XEmpty (XElement (QN "part-abbreviation-display" Nothing).emitXml) f] ++
+        map (XElement (QN "group" Nothing).emitXml) g ++
+        map (XElement (QN "score-instrument" Nothing).emitXml) h ++
+        [maybe XEmpty (XElement (QN "midi-device" Nothing).emitXml) i] ++
+        map (XElement (QN "midi-instrument" Nothing).emitXml) j)
+parseCmpScorePart :: P.XParse CmpScorePart
+parseCmpScorePart = 
+      CmpScorePart
+        <$> (P.xattr (P.name "id") >>= parseID)
+        <*> P.optional (P.xchild (P.name "identification") (parseIdentification))
+        <*> (P.xchild (P.name "part-name") (parsePartName))
+        <*> P.optional (P.xchild (P.name "part-name-display") (parseNameDisplay))
+        <*> P.optional (P.xchild (P.name "part-abbreviation") (parsePartName))
+        <*> P.optional (P.xchild (P.name "part-abbreviation-display") (parseNameDisplay))
+        <*> P.many (P.xchild (P.name "group") (P.xtext >>= return))
+        <*> P.many (P.xchild (P.name "score-instrument") (parseScoreInstrument))
+        <*> P.optional (P.xchild (P.name "midi-device") (parseMidiDevice))
+        <*> P.many (P.xchild (P.name "midi-instrument") (parseMidiInstrument))
+
+-- | Smart constructor for 'CmpScorePart'
+mkCmpScorePart :: ID -> PartName -> CmpScorePart
+mkCmpScorePart a c = CmpScorePart a Nothing c Nothing Nothing Nothing [] [] Nothing []
+
+-- | @score-partwise@ /(complex)/
+data ScorePartwise = 
+      ScorePartwise {
+          scorePartwiseVersion :: (Maybe Token) -- ^ /version/ attribute
+        , scorePartwiseScoreHeader :: ScoreHeader
+        , scorePartwisePart :: [CmpPart] -- ^ /part/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml ScorePartwise where
+    emitXml (ScorePartwise a b c) =
+      XElement (QN "score-partwise" Nothing) $ XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "version" Nothing).emitXml) a])
+        ([emitXml b] ++
+        map (XElement (QN "part" Nothing).emitXml) c)
+parseScorePartwise :: P.XParse ScorePartwise
+parseScorePartwise = 
+      ScorePartwise
+        <$> P.optional (P.xattr (P.name "version") >>= parseToken)
+        <*> parseScoreHeader
+        <*> P.many (P.xchild (P.name "part") (parseCmpPart))
+
+-- | Smart constructor for 'ScorePartwise'
+mkScorePartwise :: ScoreHeader -> ScorePartwise
+mkScorePartwise b = ScorePartwise Nothing b []
+
+-- | @score-timewise@ /(complex)/
+data ScoreTimewise = 
+      ScoreTimewise {
+          scoreTimewiseVersion :: (Maybe Token) -- ^ /version/ attribute
+        , scoreTimewiseScoreHeader :: ScoreHeader
+        , scoreTimewiseMeasure :: [CmpMeasure] -- ^ /measure/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml ScoreTimewise where
+    emitXml (ScoreTimewise a b c) =
+      XElement (QN "score-timewise" Nothing) $ XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "version" Nothing).emitXml) a])
+        ([emitXml b] ++
+        map (XElement (QN "measure" Nothing).emitXml) c)
+parseScoreTimewise :: P.XParse ScoreTimewise
+parseScoreTimewise = 
+      ScoreTimewise
+        <$> P.optional (P.xattr (P.name "version") >>= parseToken)
+        <*> parseScoreHeader
+        <*> P.many (P.xchild (P.name "measure") (parseCmpMeasure))
+
+-- | Smart constructor for 'ScoreTimewise'
+mkScoreTimewise :: ScoreHeader -> ScoreTimewise
+mkScoreTimewise b = ScoreTimewise Nothing b []
+
+-- | @slash@ /(complex)/
+--
+-- The slash type is used to indicate that slash notation is to be used. If the slash is on every beat, use-stems is no (the default). To indicate rhythms but not pitches, use-stems is set to yes. The type attribute indicates whether this is the start or stop of a slash notation style. The use-dots attribute works as for the beat-repeat element, and only has effect if use-stems is no.
+data CmpSlash = 
+      CmpSlash {
+          slashType :: StartStop -- ^ /type/ attribute
+        , slashUseDots :: (Maybe YesNo) -- ^ /use-dots/ attribute
+        , slashUseStems :: (Maybe YesNo) -- ^ /use-stems/ attribute
+        , slashSlash :: (Maybe Slash)
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml CmpSlash where
+    emitXml (CmpSlash a b c d) =
+      XContent XEmpty
+        ([XAttr (QN "type" Nothing) (emitXml a)] ++
+        [maybe XEmpty (XAttr (QN "use-dots" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "use-stems" Nothing).emitXml) c])
+        ([emitXml d])
+parseCmpSlash :: P.XParse CmpSlash
+parseCmpSlash = 
+      CmpSlash
+        <$> (P.xattr (P.name "type") >>= parseStartStop)
+        <*> P.optional (P.xattr (P.name "use-dots") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "use-stems") >>= parseYesNo)
+        <*> P.optional (parseSlash)
+
+-- | Smart constructor for 'CmpSlash'
+mkCmpSlash :: StartStop -> CmpSlash
+mkCmpSlash a = CmpSlash a Nothing Nothing Nothing
+
+-- | @slide@ /(complex)/
+--
+-- Glissando and slide types both indicate rapidly moving from one pitch to the other so that individual notes are not discerned. The distinction is similar to that between NIFF's glissando and portamento elements. A slide is continuous between two notes and defaults to a solid line. The optional text for a is printed alongside the line.
+data Slide = 
+      Slide {
+          slideString :: String -- ^ text content
+        , slideType :: StartStop -- ^ /type/ attribute
+        , slideNumber :: (Maybe NumberLevel) -- ^ /number/ attribute
+        , slideLineType :: (Maybe LineType) -- ^ /line-type/ attribute
+        , slideDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , slideDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , slideRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , slideRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , slideFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , slideFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , slideFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , slideFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , slideColor :: (Maybe Color) -- ^ /color/ attribute
+        , slideAccelerate :: (Maybe YesNo) -- ^ /accelerate/ attribute
+        , slideBeats :: (Maybe TrillBeats) -- ^ /beats/ attribute
+        , slideFirstBeat :: (Maybe Percent) -- ^ /first-beat/ attribute
+        , slideLastBeat :: (Maybe Percent) -- ^ /last-beat/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Slide where
+    emitXml (Slide a b c d e f g h i j k l m n o p q) =
+      XContent (emitXml a)
+        ([XAttr (QN "type" Nothing) (emitXml b)] ++
+        [maybe XEmpty (XAttr (QN "number" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "line-type" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) l] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) m] ++
+        [maybe XEmpty (XAttr (QN "accelerate" Nothing).emitXml) n] ++
+        [maybe XEmpty (XAttr (QN "beats" Nothing).emitXml) o] ++
+        [maybe XEmpty (XAttr (QN "first-beat" Nothing).emitXml) p] ++
+        [maybe XEmpty (XAttr (QN "last-beat" Nothing).emitXml) q])
+        []
+parseSlide :: P.XParse Slide
+parseSlide = 
+      Slide
+        <$> (P.xtext >>= return)
+        <*> (P.xattr (P.name "type") >>= parseStartStop)
+        <*> P.optional (P.xattr (P.name "number") >>= parseNumberLevel)
+        <*> P.optional (P.xattr (P.name "line-type") >>= parseLineType)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "accelerate") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "beats") >>= parseTrillBeats)
+        <*> P.optional (P.xattr (P.name "first-beat") >>= parsePercent)
+        <*> P.optional (P.xattr (P.name "last-beat") >>= parsePercent)
+
+-- | Smart constructor for 'Slide'
+mkSlide :: String -> StartStop -> Slide
+mkSlide a b = Slide a b Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @slur@ /(complex)/
+--
+-- Slur types are empty. Most slurs are represented with two elements: one with a start type, and one with a stop type. Slurs can add more elements using a continue type. This is typically used to specify the formatting of cross-system slurs, or to specify the shape of very complex slurs.
+data Slur = 
+      Slur {
+          slurType :: StartStopContinue -- ^ /type/ attribute
+        , slurNumber :: (Maybe NumberLevel) -- ^ /number/ attribute
+        , slurLineType :: (Maybe LineType) -- ^ /line-type/ attribute
+        , slurDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , slurDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , slurRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , slurRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , slurPlacement :: (Maybe AboveBelow) -- ^ /placement/ attribute
+        , slurOrientation :: (Maybe OverUnder) -- ^ /orientation/ attribute
+        , slurBezierOffset :: (Maybe Divisions) -- ^ /bezier-offset/ attribute
+        , slurBezierOffset2 :: (Maybe Divisions) -- ^ /bezier-offset2/ attribute
+        , slurBezierX :: (Maybe Tenths) -- ^ /bezier-x/ attribute
+        , slurBezierY :: (Maybe Tenths) -- ^ /bezier-y/ attribute
+        , slurBezierX2 :: (Maybe Tenths) -- ^ /bezier-x2/ attribute
+        , slurBezierY2 :: (Maybe Tenths) -- ^ /bezier-y2/ attribute
+        , slurColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Slur where
+    emitXml (Slur a b c d e f g h i j k l m n o p) =
+      XContent XEmpty
+        ([XAttr (QN "type" Nothing) (emitXml a)] ++
+        [maybe XEmpty (XAttr (QN "number" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "line-type" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "placement" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "orientation" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "bezier-offset" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "bezier-offset2" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "bezier-x" Nothing).emitXml) l] ++
+        [maybe XEmpty (XAttr (QN "bezier-y" Nothing).emitXml) m] ++
+        [maybe XEmpty (XAttr (QN "bezier-x2" Nothing).emitXml) n] ++
+        [maybe XEmpty (XAttr (QN "bezier-y2" Nothing).emitXml) o] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) p])
+        []
+parseSlur :: P.XParse Slur
+parseSlur = 
+      Slur
+        <$> (P.xattr (P.name "type") >>= parseStartStopContinue)
+        <*> P.optional (P.xattr (P.name "number") >>= parseNumberLevel)
+        <*> P.optional (P.xattr (P.name "line-type") >>= parseLineType)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "placement") >>= parseAboveBelow)
+        <*> P.optional (P.xattr (P.name "orientation") >>= parseOverUnder)
+        <*> P.optional (P.xattr (P.name "bezier-offset") >>= parseDivisions)
+        <*> P.optional (P.xattr (P.name "bezier-offset2") >>= parseDivisions)
+        <*> P.optional (P.xattr (P.name "bezier-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "bezier-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "bezier-x2") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "bezier-y2") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'Slur'
+mkSlur :: StartStopContinue -> Slur
+mkSlur a = Slur a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @sound@ /(complex)/
+--
+-- The sound element contains general playback parameters. They can stand alone within a part/measure, or be a component element within a direction.
+--
+-- @
+-- 	
+-- Tempo is expressed in quarter notes per minute. If 0, the sound-generating program should prompt the user at the time of compiling a sound (MIDI) file.
+-- 	
+-- Dynamics (or MIDI velocity) are expressed as a percentage of the default forte value (90 for MIDI 1.0).
+-- 	
+-- Dacapo indicates to go back to the beginning of the movement. When used it always has the value "yes".
+-- 	
+-- Segno and dalsegno are used for backwards jumps to a segno sign; coda and tocoda are used for forward jumps to a coda sign. If there are multiple jumps, the value of these parameters can be used to name and distinguish them. If segno or coda is used, the divisions attribute can also be used to indicate the number of divisions per quarter note. Otherwise sound and MIDI generating programs may have to recompute this.
+-- 	
+-- By default, a dalsegno or dacapo attribute indicates that the jump should occur the first time through, while a tocoda attribute indicates the jump should occur the second time through. The time that jumps occur can be changed by using the time-only attribute.
+-- 	
+-- Forward-repeat is used when a forward repeat sign is implied, and usually follows a bar line. When used it always has the value of "yes".
+-- 	
+-- The fine attribute follows the final note or rest in a movement with a da capo or dal segno direction. If numeric, the value represents the actual duration of the final note or rest, which can be ambiguous in written notation and different among parts and voices. The value may also be "yes" to indicate no change to the final duration.
+-- 	
+-- If the sound element applies only one time through a repeat, the time-only attribute indicates which time to apply the sound element.
+-- 	
+-- Pizzicato in a sound element effects all following notes. Yes indicates pizzicato, no indicates arco.
+-- 
+-- The pan and elevation attributes are deprecated in Version 2.0. The pan and elevation elements in the midi-instrument element should be used instead. The meaning of the pan and elevation attributes is the same as for the pan and elevation elements. If both are present, the mid-instrument elements take priority.
+-- 	
+-- The damper-pedal, soft-pedal, and sostenuto-pedal attributes effect playback of the three common piano pedals and their MIDI controller equivalents. The yes value indicates the pedal is depressed; no indicates the pedal is released. A numeric value from 0 to 100 may also be used for half pedaling. This value is the percentage that the pedal is depressed. A value of 0 is equivalent to no, and a value of 100 is equivalent to yes.
+-- 	
+-- MIDI instruments are changed using the midi-instrument element.
+-- 
+-- The offset element is used to indicate that the sound takes place offset from the current score position. If the sound element is a child of a direction element, the sound offset element overrides the direction offset element if both elements are present. Note that the offset reflects the intended musical position for the change in sound. It should not be used to compensate for latency issues in particular hardware configurations.
+-- @
+data Sound = 
+      Sound {
+          soundTempo :: (Maybe NonNegativeDecimal) -- ^ /tempo/ attribute
+        , soundDynamics :: (Maybe NonNegativeDecimal) -- ^ /dynamics/ attribute
+        , soundDacapo :: (Maybe YesNo) -- ^ /dacapo/ attribute
+        , soundSegno :: (Maybe Token) -- ^ /segno/ attribute
+        , soundDalsegno :: (Maybe Token) -- ^ /dalsegno/ attribute
+        , soundCoda :: (Maybe Token) -- ^ /coda/ attribute
+        , soundTocoda :: (Maybe Token) -- ^ /tocoda/ attribute
+        , soundDivisions :: (Maybe Divisions) -- ^ /divisions/ attribute
+        , soundForwardRepeat :: (Maybe YesNo) -- ^ /forward-repeat/ attribute
+        , soundFine :: (Maybe Token) -- ^ /fine/ attribute
+        , soundTimeOnly :: (Maybe Token) -- ^ /time-only/ attribute
+        , soundPizzicato :: (Maybe YesNo) -- ^ /pizzicato/ attribute
+        , soundPan :: (Maybe RotationDegrees) -- ^ /pan/ attribute
+        , soundElevation :: (Maybe RotationDegrees) -- ^ /elevation/ attribute
+        , soundDamperPedal :: (Maybe YesNoNumber) -- ^ /damper-pedal/ attribute
+        , soundSoftPedal :: (Maybe YesNoNumber) -- ^ /soft-pedal/ attribute
+        , soundSostenutoPedal :: (Maybe YesNoNumber) -- ^ /sostenuto-pedal/ attribute
+        , soundMidiInstrument :: [MidiInstrument] -- ^ /midi-instrument/ child element
+        , soundOffset :: (Maybe Offset) -- ^ /offset/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Sound where
+    emitXml (Sound a b c d e f g h i j k l m n o p q r s) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "tempo" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "dynamics" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "dacapo" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "segno" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "dalsegno" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "coda" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "tocoda" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "divisions" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "forward-repeat" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "fine" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "time-only" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "pizzicato" Nothing).emitXml) l] ++
+        [maybe XEmpty (XAttr (QN "pan" Nothing).emitXml) m] ++
+        [maybe XEmpty (XAttr (QN "elevation" Nothing).emitXml) n] ++
+        [maybe XEmpty (XAttr (QN "damper-pedal" Nothing).emitXml) o] ++
+        [maybe XEmpty (XAttr (QN "soft-pedal" Nothing).emitXml) p] ++
+        [maybe XEmpty (XAttr (QN "sostenuto-pedal" Nothing).emitXml) q])
+        (map (XElement (QN "midi-instrument" Nothing).emitXml) r ++
+        [maybe XEmpty (XElement (QN "offset" Nothing).emitXml) s])
+parseSound :: P.XParse Sound
+parseSound = 
+      Sound
+        <$> P.optional (P.xattr (P.name "tempo") >>= parseNonNegativeDecimal)
+        <*> P.optional (P.xattr (P.name "dynamics") >>= parseNonNegativeDecimal)
+        <*> P.optional (P.xattr (P.name "dacapo") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "segno") >>= parseToken)
+        <*> P.optional (P.xattr (P.name "dalsegno") >>= parseToken)
+        <*> P.optional (P.xattr (P.name "coda") >>= parseToken)
+        <*> P.optional (P.xattr (P.name "tocoda") >>= parseToken)
+        <*> P.optional (P.xattr (P.name "divisions") >>= parseDivisions)
+        <*> P.optional (P.xattr (P.name "forward-repeat") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "fine") >>= parseToken)
+        <*> P.optional (P.xattr (P.name "time-only") >>= parseToken)
+        <*> P.optional (P.xattr (P.name "pizzicato") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "pan") >>= parseRotationDegrees)
+        <*> P.optional (P.xattr (P.name "elevation") >>= parseRotationDegrees)
+        <*> P.optional (P.xattr (P.name "damper-pedal") >>= parseYesNoNumber)
+        <*> P.optional (P.xattr (P.name "soft-pedal") >>= parseYesNoNumber)
+        <*> P.optional (P.xattr (P.name "sostenuto-pedal") >>= parseYesNoNumber)
+        <*> P.many (P.xchild (P.name "midi-instrument") (parseMidiInstrument))
+        <*> P.optional (P.xchild (P.name "offset") (parseOffset))
+
+-- | Smart constructor for 'Sound'
+mkSound :: Sound
+mkSound = Sound Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing [] Nothing
+
+-- | @staff-details@ /(complex)/
+--
+-- The staff-details element is used to indicate different types of staves. The optional number attribute specifies the staff number from top to bottom on the system, as with clef. The print-object attribute is used to indicate when a staff is not printed in a part, usually in large scores where empty parts are omitted. It is yes by default. If print-spacing is yes while print-object is no, the score is printed in cutaway format where vertical space is left for the empty part.
+data StaffDetails = 
+      StaffDetails {
+          staffDetailsNumber :: (Maybe StaffNumber) -- ^ /number/ attribute
+        , staffDetailsShowFrets :: (Maybe ShowFrets) -- ^ /show-frets/ attribute
+        , staffDetailsPrintObject :: (Maybe YesNo) -- ^ /print-object/ attribute
+        , staffDetailsPrintSpacing :: (Maybe YesNo) -- ^ /print-spacing/ attribute
+        , staffDetailsStaffType :: (Maybe StaffType) -- ^ /staff-type/ child element
+        , staffDetailsStaffLines :: (Maybe NonNegativeInteger) -- ^ /staff-lines/ child element
+        , staffDetailsStaffTuning :: [StaffTuning] -- ^ /staff-tuning/ child element
+        , staffDetailsCapo :: (Maybe NonNegativeInteger) -- ^ /capo/ child element
+        , staffDetailsStaffSize :: (Maybe NonNegativeDecimal) -- ^ /staff-size/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml StaffDetails where
+    emitXml (StaffDetails a b c d e f g h i) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "number" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "show-frets" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "print-object" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "print-spacing" Nothing).emitXml) d])
+        ([maybe XEmpty (XElement (QN "staff-type" Nothing).emitXml) e] ++
+        [maybe XEmpty (XElement (QN "staff-lines" Nothing).emitXml) f] ++
+        map (XElement (QN "staff-tuning" Nothing).emitXml) g ++
+        [maybe XEmpty (XElement (QN "capo" Nothing).emitXml) h] ++
+        [maybe XEmpty (XElement (QN "staff-size" Nothing).emitXml) i])
+parseStaffDetails :: P.XParse StaffDetails
+parseStaffDetails = 
+      StaffDetails
+        <$> P.optional (P.xattr (P.name "number") >>= parseStaffNumber)
+        <*> P.optional (P.xattr (P.name "show-frets") >>= parseShowFrets)
+        <*> P.optional (P.xattr (P.name "print-object") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "print-spacing") >>= parseYesNo)
+        <*> P.optional (P.xchild (P.name "staff-type") (P.xtext >>= parseStaffType))
+        <*> P.optional (P.xchild (P.name "staff-lines") (P.xtext >>= parseNonNegativeInteger))
+        <*> P.many (P.xchild (P.name "staff-tuning") (parseStaffTuning))
+        <*> P.optional (P.xchild (P.name "capo") (P.xtext >>= parseNonNegativeInteger))
+        <*> P.optional (P.xchild (P.name "staff-size") (P.xtext >>= parseNonNegativeDecimal))
+
+-- | Smart constructor for 'StaffDetails'
+mkStaffDetails :: StaffDetails
+mkStaffDetails = StaffDetails Nothing Nothing Nothing Nothing Nothing Nothing [] Nothing Nothing
+
+-- | @staff-layout@ /(complex)/
+--
+-- Staff layout includes the vertical distance from the bottom line of the previous staff in this system to the top line of the staff specified by the number attribute. The optional number attribute refers to staff numbers within the part, from top to bottom on the system. A value of 1 is assumed if not present. When used in the defaults element, the values apply to all parts. This value is ignored for the first staff in a system.
+data StaffLayout = 
+      StaffLayout {
+          staffLayoutNumber :: (Maybe StaffNumber) -- ^ /number/ attribute
+        , staffLayoutStaffDistance :: (Maybe Tenths) -- ^ /staff-distance/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml StaffLayout where
+    emitXml (StaffLayout a b) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "number" Nothing).emitXml) a])
+        ([maybe XEmpty (XElement (QN "staff-distance" Nothing).emitXml) b])
+parseStaffLayout :: P.XParse StaffLayout
+parseStaffLayout = 
+      StaffLayout
+        <$> P.optional (P.xattr (P.name "number") >>= parseStaffNumber)
+        <*> P.optional (P.xchild (P.name "staff-distance") (P.xtext >>= parseTenths))
+
+-- | Smart constructor for 'StaffLayout'
+mkStaffLayout :: StaffLayout
+mkStaffLayout = StaffLayout Nothing Nothing
+
+-- | @staff-tuning@ /(complex)/
+--
+-- The staff-tuning type specifies the open, non-capo tuning of the lines on a tablature staff.
+data StaffTuning = 
+      StaffTuning {
+          staffTuningLine :: (Maybe StaffLine) -- ^ /line/ attribute
+        , staffTuningTuning :: Tuning
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml StaffTuning where
+    emitXml (StaffTuning a b) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "line" Nothing).emitXml) a])
+        ([emitXml b])
+parseStaffTuning :: P.XParse StaffTuning
+parseStaffTuning = 
+      StaffTuning
+        <$> P.optional (P.xattr (P.name "line") >>= parseStaffLine)
+        <*> parseTuning
+
+-- | Smart constructor for 'StaffTuning'
+mkStaffTuning :: Tuning -> StaffTuning
+mkStaffTuning b = StaffTuning Nothing b
+
+-- | @stem@ /(complex)/
+--
+-- Stems can be down, up, none, or double. For down and up stems, the position attributes can be used to specify stem length. The relative values specify the end of the stem relative to the program default. Default values specify an absolute end stem position. Negative values of relative-y that would flip a stem instead of shortening it are ignored.
+data Stem = 
+      Stem {
+          stemStemValue :: StemValue -- ^ text content
+        , stemDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , stemDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , stemRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , stemRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , stemColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Stem where
+    emitXml (Stem a b c d e f) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) f])
+        []
+parseStem :: P.XParse Stem
+parseStem = 
+      Stem
+        <$> (P.xtext >>= parseStemValue)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'Stem'
+mkStem :: StemValue -> Stem
+mkStem a = Stem a Nothing Nothing Nothing Nothing Nothing
+
+-- | @string@ /(complex)/
+--
+-- The string type is used with tablature notation, regular notation (where it is often circled), and chord diagrams. String numbers start with 1 for the highest string.
+data CmpString = 
+      CmpString {
+          stringStringNumber :: StringNumber -- ^ text content
+        , stringDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , stringDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , stringRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , stringRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , stringFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , stringFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , stringFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , stringFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , stringColor :: (Maybe Color) -- ^ /color/ attribute
+        , stringPlacement :: (Maybe AboveBelow) -- ^ /placement/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml CmpString where
+    emitXml (CmpString a b c d e f g h i j k) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "placement" Nothing).emitXml) k])
+        []
+parseCmpString :: P.XParse CmpString
+parseCmpString = 
+      CmpString
+        <$> (P.xtext >>= parseStringNumber)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "placement") >>= parseAboveBelow)
+
+-- | Smart constructor for 'CmpString'
+mkCmpString :: StringNumber -> CmpString
+mkCmpString a = CmpString a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @strong-accent@ /(complex)/
+--
+-- The strong-accent type indicates a vertical accent mark. The type attribute indicates if the point of the accent is down or up.
+data StrongAccent = 
+      StrongAccent {
+          strongAccentEmptyPlacement :: StrongAccent
+        , strongAccentType :: (Maybe UpDown) -- ^ /type/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml StrongAccent where
+    emitXml (StrongAccent a b) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "type" Nothing).emitXml) b])
+        ([emitXml a])
+parseStrongAccent :: P.XParse StrongAccent
+parseStrongAccent = 
+      StrongAccent
+        <$> parseStrongAccent
+        <*> P.optional (P.xattr (P.name "type") >>= parseUpDown)
+
+-- | Smart constructor for 'StrongAccent'
+mkStrongAccent :: StrongAccent -> StrongAccent
+mkStrongAccent a = StrongAccent a Nothing
+
+-- | @style-text@ /(complex)/
+--
+-- The style-text type represents a text element with a print-style attribute group.
+data StyleText = 
+      StyleText {
+          styleTextString :: String -- ^ text content
+        , styleTextDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , styleTextDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , styleTextRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , styleTextRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , styleTextFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , styleTextFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , styleTextFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , styleTextFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , styleTextColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml StyleText where
+    emitXml (StyleText a b c d e f g h i j) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) j])
+        []
+parseStyleText :: P.XParse StyleText
+parseStyleText = 
+      StyleText
+        <$> (P.xtext >>= return)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'StyleText'
+mkStyleText :: String -> StyleText
+mkStyleText a = StyleText a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @supports@ /(complex)/
+--
+-- The supports type indicates if a MusicXML encoding supports a particular MusicXML element. This is recommended for elements like beam, stem, and accidental, where the absence of an element is ambiguous if you do not know if the encoding supports that element. For Version 2.0, the supports element is expanded to allow programs to indicate support for particular attributes or particular values. This lets applications communicate, for example, that all system and/or page breaks are contained in the MusicXML file.
+data Supports = 
+      Supports {
+          supportsType :: YesNo -- ^ /type/ attribute
+        , supportsElement :: NMTOKEN -- ^ /element/ attribute
+        , supportsAttribute :: (Maybe NMTOKEN) -- ^ /attribute/ attribute
+        , supportsValue :: (Maybe Token) -- ^ /value/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Supports where
+    emitXml (Supports a b c d) =
+      XContent XEmpty
+        ([XAttr (QN "type" Nothing) (emitXml a)] ++
+        [XAttr (QN "element" Nothing) (emitXml b)] ++
+        [maybe XEmpty (XAttr (QN "attribute" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "value" Nothing).emitXml) d])
+        []
+parseSupports :: P.XParse Supports
+parseSupports = 
+      Supports
+        <$> (P.xattr (P.name "type") >>= parseYesNo)
+        <*> (P.xattr (P.name "element") >>= parseNMTOKEN)
+        <*> P.optional (P.xattr (P.name "attribute") >>= parseNMTOKEN)
+        <*> P.optional (P.xattr (P.name "value") >>= parseToken)
+
+-- | Smart constructor for 'Supports'
+mkSupports :: YesNo -> NMTOKEN -> Supports
+mkSupports a b = Supports a b Nothing Nothing
+
+-- | @system-layout@ /(complex)/
+--
+-- System layout includes left and right margins and the vertical distance from the previous system. The system distance is measured from the bottom line of the previous system to the top line of the current system. It is ignored for the first system on a page. The top system distance is measured from the page's top margin to the top line of the first system. It is ignored for all but the first system on a page.
+-- 	
+-- Sometimes the sum of measure widths in a system may not equal the system width specified by the layout elements due to roundoff or other errors. The behavior when reading MusicXML files in these cases is application-dependent. For instance, applications may find that the system layout data is more reliable than the sum of the measure widths, and adjust the measure widths accordingly.
+data SystemLayout = 
+      SystemLayout {
+          systemLayoutSystemMargins :: (Maybe SystemMargins) -- ^ /system-margins/ child element
+        , systemLayoutSystemDistance :: (Maybe Tenths) -- ^ /system-distance/ child element
+        , systemLayoutTopSystemDistance :: (Maybe Tenths) -- ^ /top-system-distance/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml SystemLayout where
+    emitXml (SystemLayout a b c) =
+      XContent XEmpty
+        []
+        ([maybe XEmpty (XElement (QN "system-margins" Nothing).emitXml) a] ++
+        [maybe XEmpty (XElement (QN "system-distance" Nothing).emitXml) b] ++
+        [maybe XEmpty (XElement (QN "top-system-distance" Nothing).emitXml) c])
+parseSystemLayout :: P.XParse SystemLayout
+parseSystemLayout = 
+      SystemLayout
+        <$> P.optional (P.xchild (P.name "system-margins") (parseSystemMargins))
+        <*> P.optional (P.xchild (P.name "system-distance") (P.xtext >>= parseTenths))
+        <*> P.optional (P.xchild (P.name "top-system-distance") (P.xtext >>= parseTenths))
+
+-- | Smart constructor for 'SystemLayout'
+mkSystemLayout :: SystemLayout
+mkSystemLayout = SystemLayout Nothing Nothing Nothing
+
+-- | @system-margins@ /(complex)/
+--
+-- System margins are relative to the page margins. Positive values indent and negative values reduce the margin size.
+data SystemMargins = 
+      SystemMargins {
+          systemMarginsLeftRightMargins :: LeftRightMargins
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml SystemMargins where
+    emitXml (SystemMargins a) =
+      XReps [emitXml a]
+parseSystemMargins :: P.XParse SystemMargins
+parseSystemMargins = 
+      SystemMargins
+        <$> parseLeftRightMargins
+
+-- | Smart constructor for 'SystemMargins'
+mkSystemMargins :: LeftRightMargins -> SystemMargins
+mkSystemMargins a = SystemMargins a
+
+-- | @technical@ /(complex)/
+--
+-- Technical indications give performance information for individual instruments.
+data Technical = 
+      Technical {
+          technicalTechnical :: [ChxTechnical]
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Technical where
+    emitXml (Technical a) =
+      XReps [emitXml a]
+parseTechnical :: P.XParse Technical
+parseTechnical = 
+      Technical
+        <$> P.many (parseChxTechnical)
+
+-- | Smart constructor for 'Technical'
+mkTechnical :: Technical
+mkTechnical = Technical []
+
+-- | @text-element-data@ /(complex)/
+--
+-- The text-element-data type represents a syllable or portion of a syllable for lyric text underlay. A hyphen in the string content should only be used for an actual hyphenated word. Language names for text elements come from ISO 639, with optional country subcodes from ISO 3166.
+data TextElementData = 
+      TextElementData {
+          textElementDataString :: String -- ^ text content
+        , textElementDataLang :: (Maybe Lang) -- ^ /xml:lang/ attribute
+        , textElementDataFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , textElementDataFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , textElementDataFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , textElementDataFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , textElementDataColor :: (Maybe Color) -- ^ /color/ attribute
+        , textElementDataUnderline :: (Maybe NumberOfLines) -- ^ /underline/ attribute
+        , textElementDataOverline :: (Maybe NumberOfLines) -- ^ /overline/ attribute
+        , textElementDataLineThrough :: (Maybe NumberOfLines) -- ^ /line-through/ attribute
+        , textElementDataRotation :: (Maybe RotationDegrees) -- ^ /rotation/ attribute
+        , textElementDataLetterSpacing :: (Maybe NumberOrNormal) -- ^ /letter-spacing/ attribute
+        , textElementDataDir :: (Maybe TextDirection) -- ^ /dir/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml TextElementData where
+    emitXml (TextElementData a b c d e f g h i j k l m) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "lang" (Just "xml")).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "underline" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "overline" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "line-through" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "rotation" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "letter-spacing" Nothing).emitXml) l] ++
+        [maybe XEmpty (XAttr (QN "dir" Nothing).emitXml) m])
+        []
+parseTextElementData :: P.XParse TextElementData
+parseTextElementData = 
+      TextElementData
+        <$> (P.xtext >>= return)
+        <*> P.optional (P.xattr (P.name "xml:lang") >>= parseLang)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "underline") >>= parseNumberOfLines)
+        <*> P.optional (P.xattr (P.name "overline") >>= parseNumberOfLines)
+        <*> P.optional (P.xattr (P.name "line-through") >>= parseNumberOfLines)
+        <*> P.optional (P.xattr (P.name "rotation") >>= parseRotationDegrees)
+        <*> P.optional (P.xattr (P.name "letter-spacing") >>= parseNumberOrNormal)
+        <*> P.optional (P.xattr (P.name "dir") >>= parseTextDirection)
+
+-- | Smart constructor for 'TextElementData'
+mkTextElementData :: String -> TextElementData
+mkTextElementData a = TextElementData a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @tie@ /(complex)/
+--
+-- The tie element indicates that a tie begins or ends with this note. The tie element indicates sound; the tied element indicates notation.
+data Tie = 
+      Tie {
+          tieType :: StartStop -- ^ /type/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Tie where
+    emitXml (Tie a) =
+      XContent XEmpty
+        ([XAttr (QN "type" Nothing) (emitXml a)])
+        []
+parseTie :: P.XParse Tie
+parseTie = 
+      Tie
+        <$> (P.xattr (P.name "type") >>= parseStartStop)
+
+-- | Smart constructor for 'Tie'
+mkTie :: StartStop -> Tie
+mkTie a = Tie a
+
+-- | @tied@ /(complex)/
+--
+-- The tied type represents the notated tie. The tie element represents the tie sound.
+data Tied = 
+      Tied {
+          tiedType :: StartStop -- ^ /type/ attribute
+        , tiedNumber :: (Maybe NumberLevel) -- ^ /number/ attribute
+        , tiedLineType :: (Maybe LineType) -- ^ /line-type/ attribute
+        , tiedDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , tiedDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , tiedRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , tiedRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , tiedPlacement :: (Maybe AboveBelow) -- ^ /placement/ attribute
+        , tiedOrientation :: (Maybe OverUnder) -- ^ /orientation/ attribute
+        , tiedBezierOffset :: (Maybe Divisions) -- ^ /bezier-offset/ attribute
+        , tiedBezierOffset2 :: (Maybe Divisions) -- ^ /bezier-offset2/ attribute
+        , tiedBezierX :: (Maybe Tenths) -- ^ /bezier-x/ attribute
+        , tiedBezierY :: (Maybe Tenths) -- ^ /bezier-y/ attribute
+        , tiedBezierX2 :: (Maybe Tenths) -- ^ /bezier-x2/ attribute
+        , tiedBezierY2 :: (Maybe Tenths) -- ^ /bezier-y2/ attribute
+        , tiedColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Tied where
+    emitXml (Tied a b c d e f g h i j k l m n o p) =
+      XContent XEmpty
+        ([XAttr (QN "type" Nothing) (emitXml a)] ++
+        [maybe XEmpty (XAttr (QN "number" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "line-type" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "placement" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "orientation" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "bezier-offset" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "bezier-offset2" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "bezier-x" Nothing).emitXml) l] ++
+        [maybe XEmpty (XAttr (QN "bezier-y" Nothing).emitXml) m] ++
+        [maybe XEmpty (XAttr (QN "bezier-x2" Nothing).emitXml) n] ++
+        [maybe XEmpty (XAttr (QN "bezier-y2" Nothing).emitXml) o] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) p])
+        []
+parseTied :: P.XParse Tied
+parseTied = 
+      Tied
+        <$> (P.xattr (P.name "type") >>= parseStartStop)
+        <*> P.optional (P.xattr (P.name "number") >>= parseNumberLevel)
+        <*> P.optional (P.xattr (P.name "line-type") >>= parseLineType)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "placement") >>= parseAboveBelow)
+        <*> P.optional (P.xattr (P.name "orientation") >>= parseOverUnder)
+        <*> P.optional (P.xattr (P.name "bezier-offset") >>= parseDivisions)
+        <*> P.optional (P.xattr (P.name "bezier-offset2") >>= parseDivisions)
+        <*> P.optional (P.xattr (P.name "bezier-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "bezier-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "bezier-x2") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "bezier-y2") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'Tied'
+mkTied :: StartStop -> Tied
+mkTied a = Tied a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @time@ /(complex)/
+--
+-- Time signatures are represented by the beats element for the numerator and the beat-type element for the denominator. The symbol attribute is used indicate common and cut time symbols as well as a single number display. Multiple pairs of beat and beat-type elements are used for composite time signatures with multiple denominators, such as 2/4 + 3/8. A composite such as 3+2/8 requires only one beat/beat-type pair.
+-- 
+-- The print-object attribute allows a time signature to be specified but not printed, as is the case for excerpts from the middle of a score. The value is "yes" if not present. The optional number attribute refers to staff numbers within the part. If absent, the time signature applies to all staves in the part.
+data Time = 
+      Time {
+          timeNumber :: (Maybe StaffNumber) -- ^ /number/ attribute
+        , timeSymbol :: (Maybe TimeSymbol) -- ^ /symbol/ attribute
+        , timeDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , timeDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , timeRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , timeRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , timeFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , timeFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , timeFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , timeFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , timeColor :: (Maybe Color) -- ^ /color/ attribute
+        , timePrintObject :: (Maybe YesNo) -- ^ /print-object/ attribute
+        , timeTime :: ChxTime
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Time where
+    emitXml (Time a b c d e f g h i j k l m) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "number" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "symbol" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "print-object" Nothing).emitXml) l])
+        ([emitXml m])
+parseTime :: P.XParse Time
+parseTime = 
+      Time
+        <$> P.optional (P.xattr (P.name "number") >>= parseStaffNumber)
+        <*> P.optional (P.xattr (P.name "symbol") >>= parseTimeSymbol)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "print-object") >>= parseYesNo)
+        <*> parseChxTime
+
+-- | Smart constructor for 'Time'
+mkTime :: ChxTime -> Time
+mkTime m = Time Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing m
+
+-- | @time-modification@ /(complex)/
+--
+-- The time-modification type represents tuplets and other durational changes.
+data TimeModification = 
+      TimeModification {
+          timeModificationActualNotes :: NonNegativeInteger -- ^ /actual-notes/ child element
+        , timeModificationNormalNotes :: NonNegativeInteger -- ^ /normal-notes/ child element
+        , timeModificationTimeModification :: (Maybe SeqTimeModification)
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml TimeModification where
+    emitXml (TimeModification a b c) =
+      XContent XEmpty
+        []
+        ([XElement (QN "actual-notes" Nothing) (emitXml a)] ++
+        [XElement (QN "normal-notes" Nothing) (emitXml b)] ++
+        [emitXml c])
+parseTimeModification :: P.XParse TimeModification
+parseTimeModification = 
+      TimeModification
+        <$> (P.xchild (P.name "actual-notes") (P.xtext >>= parseNonNegativeInteger))
+        <*> (P.xchild (P.name "normal-notes") (P.xtext >>= parseNonNegativeInteger))
+        <*> P.optional (parseSeqTimeModification)
+
+-- | Smart constructor for 'TimeModification'
+mkTimeModification :: NonNegativeInteger -> NonNegativeInteger -> TimeModification
+mkTimeModification a b = TimeModification a b Nothing
+
+-- | @transpose@ /(complex)/
+--
+-- The transpose type represents what must be added to a written pitch to get a correct sounding pitch.
+data Transpose = 
+      Transpose {
+          transposeDiatonic :: (Maybe Int) -- ^ /diatonic/ child element
+        , transposeChromatic :: Semitones -- ^ /chromatic/ child element
+        , transposeOctaveChange :: (Maybe Int) -- ^ /octave-change/ child element
+        , transposeDouble :: (Maybe Empty) -- ^ /double/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Transpose where
+    emitXml (Transpose a b c d) =
+      XContent XEmpty
+        []
+        ([maybe XEmpty (XElement (QN "diatonic" Nothing).emitXml) a] ++
+        [XElement (QN "chromatic" Nothing) (emitXml b)] ++
+        [maybe XEmpty (XElement (QN "octave-change" Nothing).emitXml) c] ++
+        [maybe XEmpty (XElement (QN "double" Nothing).emitXml) d])
+parseTranspose :: P.XParse Transpose
+parseTranspose = 
+      Transpose
+        <$> P.optional (P.xchild (P.name "diatonic") (P.xtext >>= (P.xread "Integer")))
+        <*> (P.xchild (P.name "chromatic") (P.xtext >>= parseSemitones))
+        <*> P.optional (P.xchild (P.name "octave-change") (P.xtext >>= (P.xread "Integer")))
+        <*> P.optional (P.xchild (P.name "double") (parseEmpty))
+
+-- | Smart constructor for 'Transpose'
+mkTranspose :: Semitones -> Transpose
+mkTranspose b = Transpose Nothing b Nothing Nothing
+
+-- | @tremolo@ /(complex)/
+--
+-- While using repeater beams was the original method for indicating tremolos, often playback and display are not well-enough integrated in an application to make that feasible. The tremolo ornament can be used to indicate either single-note or double-note tremolos. Single-note tremolos use the single type, while double-note tremolos use the start and stop types. The default is "single" for compatibility with Version 1.1. The text of the element indicates the number of tremolo marks and is an integer from 0 to 6. Note that the number of attached beams is not included in this value, but is represented separately using the beam element.
+data Tremolo = 
+      Tremolo {
+          tremoloTremoloMarks :: TremoloMarks -- ^ text content
+        , tremoloType :: (Maybe StartStopSingle) -- ^ /type/ attribute
+        , tremoloDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , tremoloDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , tremoloRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , tremoloRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , tremoloFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , tremoloFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , tremoloFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , tremoloFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , tremoloColor :: (Maybe Color) -- ^ /color/ attribute
+        , tremoloPlacement :: (Maybe AboveBelow) -- ^ /placement/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Tremolo where
+    emitXml (Tremolo a b c d e f g h i j k l) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "type" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "placement" Nothing).emitXml) l])
+        []
+parseTremolo :: P.XParse Tremolo
+parseTremolo = 
+      Tremolo
+        <$> (P.xtext >>= parseTremoloMarks)
+        <*> P.optional (P.xattr (P.name "type") >>= parseStartStopSingle)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "placement") >>= parseAboveBelow)
+
+-- | Smart constructor for 'Tremolo'
+mkTremolo :: TremoloMarks -> Tremolo
+mkTremolo a = Tremolo a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @tuplet@ /(complex)/
+--
+-- A tuplet element is present when a tuplet is to be displayed graphically, in addition to the sound data provided by the time-modification elements. The number attribute is used to distinguish nested tuplets. The bracket attribute is used to indicate the presence of a bracket. If unspecified, the results are implementation-dependent. The line-shape attribute is used to specify whether the bracket is straight or in the older curved or slurred style. It is straight by default.
+-- 	
+-- Whereas a time-modification element shows how the cumulative, sounding effect of tuplets compare to the written note type, the tuplet element describes how each tuplet is displayed.
+-- 	
+-- The show-number attribute is used to display either the number of actual notes, the number of both actual and normal notes, or neither. It is actual by default. The show-type attribute is used to display either the actual type, both the actual and normal types, or neither. It is none by default.
+data Tuplet = 
+      Tuplet {
+          tupletType :: StartStop -- ^ /type/ attribute
+        , tupletNumber :: (Maybe NumberLevel) -- ^ /number/ attribute
+        , tupletBracket :: (Maybe YesNo) -- ^ /bracket/ attribute
+        , tupletShowNumber :: (Maybe ShowTuplet) -- ^ /show-number/ attribute
+        , tupletShowType :: (Maybe ShowTuplet) -- ^ /show-type/ attribute
+        , tupletLineShape :: (Maybe LineShape) -- ^ /line-shape/ attribute
+        , tupletDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , tupletDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , tupletRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , tupletRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , tupletPlacement :: (Maybe AboveBelow) -- ^ /placement/ attribute
+        , tupletTupletActual :: (Maybe TupletPortion) -- ^ /tuplet-actual/ child element
+        , tupletTupletNormal :: (Maybe TupletPortion) -- ^ /tuplet-normal/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Tuplet where
+    emitXml (Tuplet a b c d e f g h i j k l m) =
+      XContent XEmpty
+        ([XAttr (QN "type" Nothing) (emitXml a)] ++
+        [maybe XEmpty (XAttr (QN "number" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "bracket" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "show-number" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "show-type" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "line-shape" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "placement" Nothing).emitXml) k])
+        ([maybe XEmpty (XElement (QN "tuplet-actual" Nothing).emitXml) l] ++
+        [maybe XEmpty (XElement (QN "tuplet-normal" Nothing).emitXml) m])
+parseTuplet :: P.XParse Tuplet
+parseTuplet = 
+      Tuplet
+        <$> (P.xattr (P.name "type") >>= parseStartStop)
+        <*> P.optional (P.xattr (P.name "number") >>= parseNumberLevel)
+        <*> P.optional (P.xattr (P.name "bracket") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "show-number") >>= parseShowTuplet)
+        <*> P.optional (P.xattr (P.name "show-type") >>= parseShowTuplet)
+        <*> P.optional (P.xattr (P.name "line-shape") >>= parseLineShape)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "placement") >>= parseAboveBelow)
+        <*> P.optional (P.xchild (P.name "tuplet-actual") (parseTupletPortion))
+        <*> P.optional (P.xchild (P.name "tuplet-normal") (parseTupletPortion))
+
+-- | Smart constructor for 'Tuplet'
+mkTuplet :: StartStop -> Tuplet
+mkTuplet a = Tuplet a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @tuplet-dot@ /(complex)/
+--
+-- The tuplet-dot type is used to specify dotted normal tuplet types.
+data TupletDot = 
+      TupletDot {
+          tupletDotFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , tupletDotFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , tupletDotFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , tupletDotFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , tupletDotColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml TupletDot where
+    emitXml (TupletDot a b c d e) =
+      XContent XEmpty
+        ([maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) a] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) e])
+        []
+parseTupletDot :: P.XParse TupletDot
+parseTupletDot = 
+      TupletDot
+        <$> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'TupletDot'
+mkTupletDot :: TupletDot
+mkTupletDot = TupletDot Nothing Nothing Nothing Nothing Nothing
+
+-- | @tuplet-number@ /(complex)/
+--
+-- The tuplet-number type indicates the number of notes for this portion of the tuplet.
+data TupletNumber = 
+      TupletNumber {
+          tupletNumberNonNegativeInteger :: NonNegativeInteger -- ^ text content
+        , tupletNumberFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , tupletNumberFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , tupletNumberFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , tupletNumberFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , tupletNumberColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml TupletNumber where
+    emitXml (TupletNumber a b c d e f) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) f])
+        []
+parseTupletNumber :: P.XParse TupletNumber
+parseTupletNumber = 
+      TupletNumber
+        <$> (P.xtext >>= parseNonNegativeInteger)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'TupletNumber'
+mkTupletNumber :: NonNegativeInteger -> TupletNumber
+mkTupletNumber a = TupletNumber a Nothing Nothing Nothing Nothing Nothing
+
+-- | @tuplet-portion@ /(complex)/
+--
+-- The tuplet-portion type provides optional full control over tuplet specifications. It allows the number and note type (including dots) to be set for the actual and normal portions of a single tuplet. If any of these elements are absent, their values are based on the time-modification element.
+data TupletPortion = 
+      TupletPortion {
+          tupletPortionTupletNumber :: (Maybe TupletNumber) -- ^ /tuplet-number/ child element
+        , tupletPortionTupletType :: (Maybe TupletType) -- ^ /tuplet-type/ child element
+        , tupletPortionTupletDot :: [TupletDot] -- ^ /tuplet-dot/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml TupletPortion where
+    emitXml (TupletPortion a b c) =
+      XContent XEmpty
+        []
+        ([maybe XEmpty (XElement (QN "tuplet-number" Nothing).emitXml) a] ++
+        [maybe XEmpty (XElement (QN "tuplet-type" Nothing).emitXml) b] ++
+        map (XElement (QN "tuplet-dot" Nothing).emitXml) c)
+parseTupletPortion :: P.XParse TupletPortion
+parseTupletPortion = 
+      TupletPortion
+        <$> P.optional (P.xchild (P.name "tuplet-number") (parseTupletNumber))
+        <*> P.optional (P.xchild (P.name "tuplet-type") (parseTupletType))
+        <*> P.many (P.xchild (P.name "tuplet-dot") (parseTupletDot))
+
+-- | Smart constructor for 'TupletPortion'
+mkTupletPortion :: TupletPortion
+mkTupletPortion = TupletPortion Nothing Nothing []
+
+-- | @tuplet-type@ /(complex)/
+--
+-- The tuplet-type type indicates the graphical note type of the notes for this portion of the tuplet.
+data TupletType = 
+      TupletType {
+          tupletTypeNoteTypeValue :: NoteTypeValue -- ^ text content
+        , tupletTypeFontFamily :: (Maybe CommaSeparatedText) -- ^ /font-family/ attribute
+        , tupletTypeFontStyle :: (Maybe FontStyle) -- ^ /font-style/ attribute
+        , tupletTypeFontSize :: (Maybe FontSize) -- ^ /font-size/ attribute
+        , tupletTypeFontWeight :: (Maybe FontWeight) -- ^ /font-weight/ attribute
+        , tupletTypeColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml TupletType where
+    emitXml (TupletType a b c d e f) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "font-family" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "font-style" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "font-size" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "font-weight" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) f])
+        []
+parseTupletType :: P.XParse TupletType
+parseTupletType = 
+      TupletType
+        <$> (P.xtext >>= parseNoteTypeValue)
+        <*> P.optional (P.xattr (P.name "font-family") >>= parseCommaSeparatedText)
+        <*> P.optional (P.xattr (P.name "font-style") >>= parseFontStyle)
+        <*> P.optional (P.xattr (P.name "font-size") >>= parseFontSize)
+        <*> P.optional (P.xattr (P.name "font-weight") >>= parseFontWeight)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'TupletType'
+mkTupletType :: NoteTypeValue -> TupletType
+mkTupletType a = TupletType a Nothing Nothing Nothing Nothing Nothing
+
+-- | @typed-text@ /(complex)/
+--
+-- The typed-text type represents a text element with a type attributes.
+data TypedText = 
+      TypedText {
+          typedTextString :: String -- ^ text content
+        , typedTextType :: (Maybe Token) -- ^ /type/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml TypedText where
+    emitXml (TypedText a b) =
+      XContent (emitXml a)
+        ([maybe XEmpty (XAttr (QN "type" Nothing).emitXml) b])
+        []
+parseTypedText :: P.XParse TypedText
+parseTypedText = 
+      TypedText
+        <$> (P.xtext >>= return)
+        <*> P.optional (P.xattr (P.name "type") >>= parseToken)
+
+-- | Smart constructor for 'TypedText'
+mkTypedText :: String -> TypedText
+mkTypedText a = TypedText a Nothing
+
+-- | @wavy-line@ /(complex)/
+--
+-- Wavy lines are one way to indicate trills. When used with a measure element, they should always have type="continue" set.
+data WavyLine = 
+      WavyLine {
+          wavyLineType :: StartStopContinue -- ^ /type/ attribute
+        , wavyLineNumber :: (Maybe NumberLevel) -- ^ /number/ attribute
+        , wavyLineDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , wavyLineDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , wavyLineRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , wavyLineRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , wavyLinePlacement :: (Maybe AboveBelow) -- ^ /placement/ attribute
+        , wavyLineColor :: (Maybe Color) -- ^ /color/ attribute
+        , wavyLineStartNote :: (Maybe StartNote) -- ^ /start-note/ attribute
+        , wavyLineTrillStep :: (Maybe TrillStep) -- ^ /trill-step/ attribute
+        , wavyLineTwoNoteTurn :: (Maybe TwoNoteTurn) -- ^ /two-note-turn/ attribute
+        , wavyLineAccelerate :: (Maybe YesNo) -- ^ /accelerate/ attribute
+        , wavyLineBeats :: (Maybe TrillBeats) -- ^ /beats/ attribute
+        , wavyLineSecondBeat :: (Maybe Percent) -- ^ /second-beat/ attribute
+        , wavyLineLastBeat :: (Maybe Percent) -- ^ /last-beat/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml WavyLine where
+    emitXml (WavyLine a b c d e f g h i j k l m n o) =
+      XContent XEmpty
+        ([XAttr (QN "type" Nothing) (emitXml a)] ++
+        [maybe XEmpty (XAttr (QN "number" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "placement" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) h] ++
+        [maybe XEmpty (XAttr (QN "start-note" Nothing).emitXml) i] ++
+        [maybe XEmpty (XAttr (QN "trill-step" Nothing).emitXml) j] ++
+        [maybe XEmpty (XAttr (QN "two-note-turn" Nothing).emitXml) k] ++
+        [maybe XEmpty (XAttr (QN "accelerate" Nothing).emitXml) l] ++
+        [maybe XEmpty (XAttr (QN "beats" Nothing).emitXml) m] ++
+        [maybe XEmpty (XAttr (QN "second-beat" Nothing).emitXml) n] ++
+        [maybe XEmpty (XAttr (QN "last-beat" Nothing).emitXml) o])
+        []
+parseWavyLine :: P.XParse WavyLine
+parseWavyLine = 
+      WavyLine
+        <$> (P.xattr (P.name "type") >>= parseStartStopContinue)
+        <*> P.optional (P.xattr (P.name "number") >>= parseNumberLevel)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "placement") >>= parseAboveBelow)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+        <*> P.optional (P.xattr (P.name "start-note") >>= parseStartNote)
+        <*> P.optional (P.xattr (P.name "trill-step") >>= parseTrillStep)
+        <*> P.optional (P.xattr (P.name "two-note-turn") >>= parseTwoNoteTurn)
+        <*> P.optional (P.xattr (P.name "accelerate") >>= parseYesNo)
+        <*> P.optional (P.xattr (P.name "beats") >>= parseTrillBeats)
+        <*> P.optional (P.xattr (P.name "second-beat") >>= parsePercent)
+        <*> P.optional (P.xattr (P.name "last-beat") >>= parsePercent)
+
+-- | Smart constructor for 'WavyLine'
+mkWavyLine :: StartStopContinue -> WavyLine
+mkWavyLine a = WavyLine a Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @wedge@ /(complex)/
+--
+-- The wedge type represents crescendo and diminuendo wedge symbols. The type attribute is crescendo for the start of a wedge that is closed at the left side, and diminuendo for the start of a wedge that is closed on the right side. Spread values are measured in tenths; those at the start of a crescendo wedge or end of a diminuendo wedge are ignored.
+data Wedge = 
+      Wedge {
+          wedgeType :: WedgeType -- ^ /type/ attribute
+        , wedgeNumber :: (Maybe NumberLevel) -- ^ /number/ attribute
+        , wedgeSpread :: (Maybe Tenths) -- ^ /spread/ attribute
+        , wedgeDefaultX :: (Maybe Tenths) -- ^ /default-x/ attribute
+        , wedgeDefaultY :: (Maybe Tenths) -- ^ /default-y/ attribute
+        , wedgeRelativeX :: (Maybe Tenths) -- ^ /relative-x/ attribute
+        , wedgeRelativeY :: (Maybe Tenths) -- ^ /relative-y/ attribute
+        , wedgeColor :: (Maybe Color) -- ^ /color/ attribute
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Wedge where
+    emitXml (Wedge a b c d e f g h) =
+      XContent XEmpty
+        ([XAttr (QN "type" Nothing) (emitXml a)] ++
+        [maybe XEmpty (XAttr (QN "number" Nothing).emitXml) b] ++
+        [maybe XEmpty (XAttr (QN "spread" Nothing).emitXml) c] ++
+        [maybe XEmpty (XAttr (QN "default-x" Nothing).emitXml) d] ++
+        [maybe XEmpty (XAttr (QN "default-y" Nothing).emitXml) e] ++
+        [maybe XEmpty (XAttr (QN "relative-x" Nothing).emitXml) f] ++
+        [maybe XEmpty (XAttr (QN "relative-y" Nothing).emitXml) g] ++
+        [maybe XEmpty (XAttr (QN "color" Nothing).emitXml) h])
+        []
+parseWedge :: P.XParse Wedge
+parseWedge = 
+      Wedge
+        <$> (P.xattr (P.name "type") >>= parseWedgeType)
+        <*> P.optional (P.xattr (P.name "number") >>= parseNumberLevel)
+        <*> P.optional (P.xattr (P.name "spread") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "default-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-x") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "relative-y") >>= parseTenths)
+        <*> P.optional (P.xattr (P.name "color") >>= parseColor)
+
+-- | Smart constructor for 'Wedge'
+mkWedge :: WedgeType -> Wedge
+mkWedge a = Wedge a Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+-- | @work@ /(complex)/
+--
+-- Works are optionally identified by number and title. The work type also may indicate a link to the opus document that composes multiple scores into a collection.
+data Work = 
+      Work {
+          workWorkNumber :: (Maybe String) -- ^ /work-number/ child element
+        , workWorkTitle :: (Maybe String) -- ^ /work-title/ child element
+        , workOpus :: (Maybe Opus) -- ^ /opus/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Work where
+    emitXml (Work a b c) =
+      XContent XEmpty
+        []
+        ([maybe XEmpty (XElement (QN "work-number" Nothing).emitXml) a] ++
+        [maybe XEmpty (XElement (QN "work-title" Nothing).emitXml) b] ++
+        [maybe XEmpty (XElement (QN "opus" Nothing).emitXml) c])
+parseWork :: P.XParse Work
+parseWork = 
+      Work
+        <$> P.optional (P.xchild (P.name "work-number") (P.xtext >>= return))
+        <*> P.optional (P.xchild (P.name "work-title") (P.xtext >>= return))
+        <*> P.optional (P.xchild (P.name "opus") (parseOpus))
+
+-- | Smart constructor for 'Work'
+mkWork :: Work
+mkWork = Work Nothing Nothing Nothing
+
+-- | @articulations@ /(choice)/
+data ChxArticulations = 
+      ArticulationsAccent {
+          articulationsAccent :: EmptyPlacement -- ^ /accent/ child element
+       }
+    | ArticulationsStrongAccent {
+          articulationsStrongAccent :: StrongAccent -- ^ /strong-accent/ child element
+       }
+    | ArticulationsStaccato {
+          articulationsStaccato :: EmptyPlacement -- ^ /staccato/ child element
+       }
+    | ArticulationsTenuto {
+          articulationsTenuto :: EmptyPlacement -- ^ /tenuto/ child element
+       }
+    | ArticulationsDetachedLegato {
+          articulationsDetachedLegato :: EmptyPlacement -- ^ /detached-legato/ child element
+       }
+    | ArticulationsStaccatissimo {
+          articulationsStaccatissimo :: EmptyPlacement -- ^ /staccatissimo/ child element
+       }
+    | ArticulationsSpiccato {
+          articulationsSpiccato :: EmptyPlacement -- ^ /spiccato/ child element
+       }
+    | ArticulationsScoop {
+          articulationsScoop :: EmptyLine -- ^ /scoop/ child element
+       }
+    | ArticulationsPlop {
+          articulationsPlop :: EmptyLine -- ^ /plop/ child element
+       }
+    | ArticulationsDoit {
+          articulationsDoit :: EmptyLine -- ^ /doit/ child element
+       }
+    | ArticulationsFalloff {
+          articulationsFalloff :: EmptyLine -- ^ /falloff/ child element
+       }
+    | ArticulationsBreathMark {
+          articulationsBreathMark :: EmptyPlacement -- ^ /breath-mark/ child element
+       }
+    | ArticulationsCaesura {
+          articulationsCaesura :: EmptyPlacement -- ^ /caesura/ child element
+       }
+    | ArticulationsStress {
+          articulationsStress :: EmptyPlacement -- ^ /stress/ child element
+       }
+    | ArticulationsUnstress {
+          articulationsUnstress :: EmptyPlacement -- ^ /unstress/ child element
+       }
+    | ArticulationsOtherArticulation {
+          articulationsOtherArticulation :: PlacementText -- ^ /other-articulation/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml ChxArticulations where
+    emitXml (ArticulationsAccent a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "accent" Nothing) (emitXml a)])
+    emitXml (ArticulationsStrongAccent a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "strong-accent" Nothing) (emitXml a)])
+    emitXml (ArticulationsStaccato a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "staccato" Nothing) (emitXml a)])
+    emitXml (ArticulationsTenuto a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "tenuto" Nothing) (emitXml a)])
+    emitXml (ArticulationsDetachedLegato a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "detached-legato" Nothing) (emitXml a)])
+    emitXml (ArticulationsStaccatissimo a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "staccatissimo" Nothing) (emitXml a)])
+    emitXml (ArticulationsSpiccato a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "spiccato" Nothing) (emitXml a)])
+    emitXml (ArticulationsScoop a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "scoop" Nothing) (emitXml a)])
+    emitXml (ArticulationsPlop a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "plop" Nothing) (emitXml a)])
+    emitXml (ArticulationsDoit a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "doit" Nothing) (emitXml a)])
+    emitXml (ArticulationsFalloff a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "falloff" Nothing) (emitXml a)])
+    emitXml (ArticulationsBreathMark a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "breath-mark" Nothing) (emitXml a)])
+    emitXml (ArticulationsCaesura a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "caesura" Nothing) (emitXml a)])
+    emitXml (ArticulationsStress a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "stress" Nothing) (emitXml a)])
+    emitXml (ArticulationsUnstress a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "unstress" Nothing) (emitXml a)])
+    emitXml (ArticulationsOtherArticulation a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "other-articulation" Nothing) (emitXml a)])
+parseChxArticulations :: P.XParse ChxArticulations
+parseChxArticulations = 
+      ArticulationsAccent
+        <$> (P.xchild (P.name "accent") (parseEmptyPlacement))
+      <|> ArticulationsStrongAccent
+        <$> (P.xchild (P.name "strong-accent") (parseStrongAccent))
+      <|> ArticulationsStaccato
+        <$> (P.xchild (P.name "staccato") (parseEmptyPlacement))
+      <|> ArticulationsTenuto
+        <$> (P.xchild (P.name "tenuto") (parseEmptyPlacement))
+      <|> ArticulationsDetachedLegato
+        <$> (P.xchild (P.name "detached-legato") (parseEmptyPlacement))
+      <|> ArticulationsStaccatissimo
+        <$> (P.xchild (P.name "staccatissimo") (parseEmptyPlacement))
+      <|> ArticulationsSpiccato
+        <$> (P.xchild (P.name "spiccato") (parseEmptyPlacement))
+      <|> ArticulationsScoop
+        <$> (P.xchild (P.name "scoop") (parseEmptyLine))
+      <|> ArticulationsPlop
+        <$> (P.xchild (P.name "plop") (parseEmptyLine))
+      <|> ArticulationsDoit
+        <$> (P.xchild (P.name "doit") (parseEmptyLine))
+      <|> ArticulationsFalloff
+        <$> (P.xchild (P.name "falloff") (parseEmptyLine))
+      <|> ArticulationsBreathMark
+        <$> (P.xchild (P.name "breath-mark") (parseEmptyPlacement))
+      <|> ArticulationsCaesura
+        <$> (P.xchild (P.name "caesura") (parseEmptyPlacement))
+      <|> ArticulationsStress
+        <$> (P.xchild (P.name "stress") (parseEmptyPlacement))
+      <|> ArticulationsUnstress
+        <$> (P.xchild (P.name "unstress") (parseEmptyPlacement))
+      <|> ArticulationsOtherArticulation
+        <$> (P.xchild (P.name "other-articulation") (parsePlacementText))
+
+-- | Smart constructor for 'ArticulationsAccent'
+mkArticulationsAccent :: EmptyPlacement -> ChxArticulations
+mkArticulationsAccent a = ArticulationsAccent a
+-- | Smart constructor for 'ArticulationsStrongAccent'
+mkArticulationsStrongAccent :: StrongAccent -> ChxArticulations
+mkArticulationsStrongAccent a = ArticulationsStrongAccent a
+-- | Smart constructor for 'ArticulationsStaccato'
+mkArticulationsStaccato :: EmptyPlacement -> ChxArticulations
+mkArticulationsStaccato a = ArticulationsStaccato a
+-- | Smart constructor for 'ArticulationsTenuto'
+mkArticulationsTenuto :: EmptyPlacement -> ChxArticulations
+mkArticulationsTenuto a = ArticulationsTenuto a
+-- | Smart constructor for 'ArticulationsDetachedLegato'
+mkArticulationsDetachedLegato :: EmptyPlacement -> ChxArticulations
+mkArticulationsDetachedLegato a = ArticulationsDetachedLegato a
+-- | Smart constructor for 'ArticulationsStaccatissimo'
+mkArticulationsStaccatissimo :: EmptyPlacement -> ChxArticulations
+mkArticulationsStaccatissimo a = ArticulationsStaccatissimo a
+-- | Smart constructor for 'ArticulationsSpiccato'
+mkArticulationsSpiccato :: EmptyPlacement -> ChxArticulations
+mkArticulationsSpiccato a = ArticulationsSpiccato a
+-- | Smart constructor for 'ArticulationsScoop'
+mkArticulationsScoop :: EmptyLine -> ChxArticulations
+mkArticulationsScoop a = ArticulationsScoop a
+-- | Smart constructor for 'ArticulationsPlop'
+mkArticulationsPlop :: EmptyLine -> ChxArticulations
+mkArticulationsPlop a = ArticulationsPlop a
+-- | Smart constructor for 'ArticulationsDoit'
+mkArticulationsDoit :: EmptyLine -> ChxArticulations
+mkArticulationsDoit a = ArticulationsDoit a
+-- | Smart constructor for 'ArticulationsFalloff'
+mkArticulationsFalloff :: EmptyLine -> ChxArticulations
+mkArticulationsFalloff a = ArticulationsFalloff a
+-- | Smart constructor for 'ArticulationsBreathMark'
+mkArticulationsBreathMark :: EmptyPlacement -> ChxArticulations
+mkArticulationsBreathMark a = ArticulationsBreathMark a
+-- | Smart constructor for 'ArticulationsCaesura'
+mkArticulationsCaesura :: EmptyPlacement -> ChxArticulations
+mkArticulationsCaesura a = ArticulationsCaesura a
+-- | Smart constructor for 'ArticulationsStress'
+mkArticulationsStress :: EmptyPlacement -> ChxArticulations
+mkArticulationsStress a = ArticulationsStress a
+-- | Smart constructor for 'ArticulationsUnstress'
+mkArticulationsUnstress :: EmptyPlacement -> ChxArticulations
+mkArticulationsUnstress a = ArticulationsUnstress a
+-- | Smart constructor for 'ArticulationsOtherArticulation'
+mkArticulationsOtherArticulation :: PlacementText -> ChxArticulations
+mkArticulationsOtherArticulation a = ArticulationsOtherArticulation a
+
+-- | @bend@ /(choice)/
+data ChxBend = 
+      BendPreBend {
+          bendPreBend :: Empty -- ^ /pre-bend/ child element
+       }
+    | BendRelease {
+          bendRelease :: Empty -- ^ /release/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml ChxBend where
+    emitXml (BendPreBend a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "pre-bend" Nothing) (emitXml a)])
+    emitXml (BendRelease a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "release" Nothing) (emitXml a)])
+parseChxBend :: P.XParse ChxBend
+parseChxBend = 
+      BendPreBend
+        <$> (P.xchild (P.name "pre-bend") (parseEmpty))
+      <|> BendRelease
+        <$> (P.xchild (P.name "release") (parseEmpty))
+
+-- | Smart constructor for 'BendPreBend'
+mkBendPreBend :: Empty -> ChxBend
+mkBendPreBend a = BendPreBend a
+-- | Smart constructor for 'BendRelease'
+mkBendRelease :: Empty -> ChxBend
+mkBendRelease a = BendRelease a
+
+-- | @credit@ /(choice)/
+data ChxCredit = 
+      CreditCreditImage {
+          creditCreditImage :: Image -- ^ /credit-image/ child element
+       }
+    | CreditCreditWords {
+          creditCreditWords :: FormattedText -- ^ /credit-words/ child element
+        , chxcreditCredit :: [SeqCredit]
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml ChxCredit where
+    emitXml (CreditCreditImage a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "credit-image" Nothing) (emitXml a)])
+    emitXml (CreditCreditWords a b) =
+      XContent XEmpty
+        []
+        ([XElement (QN "credit-words" Nothing) (emitXml a)] ++
+        [emitXml b])
+parseChxCredit :: P.XParse ChxCredit
+parseChxCredit = 
+      CreditCreditImage
+        <$> (P.xchild (P.name "credit-image") (parseImage))
+      <|> CreditCreditWords
+        <$> (P.xchild (P.name "credit-words") (parseFormattedText))
+        <*> P.many (parseSeqCredit)
+
+-- | Smart constructor for 'CreditCreditImage'
+mkCreditCreditImage :: Image -> ChxCredit
+mkCreditCreditImage a = CreditCreditImage a
+-- | Smart constructor for 'CreditCreditWords'
+mkCreditCreditWords :: FormattedText -> ChxCredit
+mkCreditCreditWords a = CreditCreditWords a []
+
+-- | @direction-type@ /(choice)/
+data ChxDirectionType = 
+      DirectionTypeRehearsal {
+          directionTypeRehearsal :: [Rehearsal] -- ^ /rehearsal/ child element
+       }
+    | DirectionTypeSegno {
+          directionTypeSegno :: [EmptyPrintStyle] -- ^ /segno/ child element
+       }
+    | DirectionTypeWords {
+          directionTypeWords :: [FormattedText] -- ^ /words/ child element
+       }
+    | DirectionTypeCoda {
+          directionTypeCoda :: [EmptyPrintStyle] -- ^ /coda/ child element
+       }
+    | DirectionTypeWedge {
+          directionTypeWedge :: Wedge -- ^ /wedge/ child element
+       }
+    | DirectionTypeDynamics {
+          directionTypeDynamics :: [Dynamics] -- ^ /dynamics/ child element
+       }
+    | DirectionTypeDashes {
+          directionTypeDashes :: Dashes -- ^ /dashes/ child element
+       }
+    | DirectionTypeBracket {
+          directionTypeBracket :: Bracket -- ^ /bracket/ child element
+       }
+    | DirectionTypePedal {
+          directionTypePedal :: Pedal -- ^ /pedal/ child element
+       }
+    | DirectionTypeMetronome {
+          directionTypeMetronome :: Metronome -- ^ /metronome/ child element
+       }
+    | DirectionTypeOctaveShift {
+          directionTypeOctaveShift :: OctaveShift -- ^ /octave-shift/ child element
+       }
+    | DirectionTypeHarpPedals {
+          directionTypeHarpPedals :: HarpPedals -- ^ /harp-pedals/ child element
+       }
+    | DirectionTypeDamp {
+          directionTypeDamp :: EmptyPrintStyle -- ^ /damp/ child element
+       }
+    | DirectionTypeDampAll {
+          directionTypeDampAll :: EmptyPrintStyle -- ^ /damp-all/ child element
+       }
+    | DirectionTypeEyeglasses {
+          directionTypeEyeglasses :: EmptyPrintStyle -- ^ /eyeglasses/ child element
+       }
+    | DirectionTypeScordatura {
+          directionTypeScordatura :: Scordatura -- ^ /scordatura/ child element
+       }
+    | DirectionTypeImage {
+          directionTypeImage :: Image -- ^ /image/ child element
+       }
+    | DirectionTypeAccordionRegistration {
+          directionTypeAccordionRegistration :: AccordionRegistration -- ^ /accordion-registration/ child element
+       }
+    | DirectionTypeOtherDirection {
+          directionTypeOtherDirection :: OtherDirection -- ^ /other-direction/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml ChxDirectionType where
+    emitXml (DirectionTypeRehearsal a) =
+      XContent XEmpty
+        []
+        (map (XElement (QN "rehearsal" Nothing).emitXml) a)
+    emitXml (DirectionTypeSegno a) =
+      XContent XEmpty
+        []
+        (map (XElement (QN "segno" Nothing).emitXml) a)
+    emitXml (DirectionTypeWords a) =
+      XContent XEmpty
+        []
+        (map (XElement (QN "words" Nothing).emitXml) a)
+    emitXml (DirectionTypeCoda a) =
+      XContent XEmpty
+        []
+        (map (XElement (QN "coda" Nothing).emitXml) a)
+    emitXml (DirectionTypeWedge a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "wedge" Nothing) (emitXml a)])
+    emitXml (DirectionTypeDynamics a) =
+      XContent XEmpty
+        []
+        (map (XElement (QN "dynamics" Nothing).emitXml) a)
+    emitXml (DirectionTypeDashes a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "dashes" Nothing) (emitXml a)])
+    emitXml (DirectionTypeBracket a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "bracket" Nothing) (emitXml a)])
+    emitXml (DirectionTypePedal a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "pedal" Nothing) (emitXml a)])
+    emitXml (DirectionTypeMetronome a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "metronome" Nothing) (emitXml a)])
+    emitXml (DirectionTypeOctaveShift a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "octave-shift" Nothing) (emitXml a)])
+    emitXml (DirectionTypeHarpPedals a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "harp-pedals" Nothing) (emitXml a)])
+    emitXml (DirectionTypeDamp a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "damp" Nothing) (emitXml a)])
+    emitXml (DirectionTypeDampAll a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "damp-all" Nothing) (emitXml a)])
+    emitXml (DirectionTypeEyeglasses a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "eyeglasses" Nothing) (emitXml a)])
+    emitXml (DirectionTypeScordatura a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "scordatura" Nothing) (emitXml a)])
+    emitXml (DirectionTypeImage a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "image" Nothing) (emitXml a)])
+    emitXml (DirectionTypeAccordionRegistration a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "accordion-registration" Nothing) (emitXml a)])
+    emitXml (DirectionTypeOtherDirection a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "other-direction" Nothing) (emitXml a)])
+parseChxDirectionType :: P.XParse ChxDirectionType
+parseChxDirectionType = 
+      DirectionTypeRehearsal
+        <$> P.some (P.xchild (P.name "rehearsal") (parseRehearsal))
+      <|> DirectionTypeSegno
+        <$> P.some (P.xchild (P.name "segno") (parseEmptyPrintStyle))
+      <|> DirectionTypeWords
+        <$> P.some (P.xchild (P.name "words") (parseFormattedText))
+      <|> DirectionTypeCoda
+        <$> P.some (P.xchild (P.name "coda") (parseEmptyPrintStyle))
+      <|> DirectionTypeWedge
+        <$> (P.xchild (P.name "wedge") (parseWedge))
+      <|> DirectionTypeDynamics
+        <$> P.some (P.xchild (P.name "dynamics") (parseDynamics))
+      <|> DirectionTypeDashes
+        <$> (P.xchild (P.name "dashes") (parseDashes))
+      <|> DirectionTypeBracket
+        <$> (P.xchild (P.name "bracket") (parseBracket))
+      <|> DirectionTypePedal
+        <$> (P.xchild (P.name "pedal") (parsePedal))
+      <|> DirectionTypeMetronome
+        <$> (P.xchild (P.name "metronome") (parseMetronome))
+      <|> DirectionTypeOctaveShift
+        <$> (P.xchild (P.name "octave-shift") (parseOctaveShift))
+      <|> DirectionTypeHarpPedals
+        <$> (P.xchild (P.name "harp-pedals") (parseHarpPedals))
+      <|> DirectionTypeDamp
+        <$> (P.xchild (P.name "damp") (parseEmptyPrintStyle))
+      <|> DirectionTypeDampAll
+        <$> (P.xchild (P.name "damp-all") (parseEmptyPrintStyle))
+      <|> DirectionTypeEyeglasses
+        <$> (P.xchild (P.name "eyeglasses") (parseEmptyPrintStyle))
+      <|> DirectionTypeScordatura
+        <$> (P.xchild (P.name "scordatura") (parseScordatura))
+      <|> DirectionTypeImage
+        <$> (P.xchild (P.name "image") (parseImage))
+      <|> DirectionTypeAccordionRegistration
+        <$> (P.xchild (P.name "accordion-registration") (parseAccordionRegistration))
+      <|> DirectionTypeOtherDirection
+        <$> (P.xchild (P.name "other-direction") (parseOtherDirection))
+
+-- | Smart constructor for 'DirectionTypeRehearsal'
+mkDirectionTypeRehearsal :: ChxDirectionType
+mkDirectionTypeRehearsal = DirectionTypeRehearsal []
+-- | Smart constructor for 'DirectionTypeSegno'
+mkDirectionTypeSegno :: ChxDirectionType
+mkDirectionTypeSegno = DirectionTypeSegno []
+-- | Smart constructor for 'DirectionTypeWords'
+mkDirectionTypeWords :: ChxDirectionType
+mkDirectionTypeWords = DirectionTypeWords []
+-- | Smart constructor for 'DirectionTypeCoda'
+mkDirectionTypeCoda :: ChxDirectionType
+mkDirectionTypeCoda = DirectionTypeCoda []
+-- | Smart constructor for 'DirectionTypeWedge'
+mkDirectionTypeWedge :: Wedge -> ChxDirectionType
+mkDirectionTypeWedge a = DirectionTypeWedge a
+-- | Smart constructor for 'DirectionTypeDynamics'
+mkDirectionTypeDynamics :: ChxDirectionType
+mkDirectionTypeDynamics = DirectionTypeDynamics []
+-- | Smart constructor for 'DirectionTypeDashes'
+mkDirectionTypeDashes :: Dashes -> ChxDirectionType
+mkDirectionTypeDashes a = DirectionTypeDashes a
+-- | Smart constructor for 'DirectionTypeBracket'
+mkDirectionTypeBracket :: Bracket -> ChxDirectionType
+mkDirectionTypeBracket a = DirectionTypeBracket a
+-- | Smart constructor for 'DirectionTypePedal'
+mkDirectionTypePedal :: Pedal -> ChxDirectionType
+mkDirectionTypePedal a = DirectionTypePedal a
+-- | Smart constructor for 'DirectionTypeMetronome'
+mkDirectionTypeMetronome :: Metronome -> ChxDirectionType
+mkDirectionTypeMetronome a = DirectionTypeMetronome a
+-- | Smart constructor for 'DirectionTypeOctaveShift'
+mkDirectionTypeOctaveShift :: OctaveShift -> ChxDirectionType
+mkDirectionTypeOctaveShift a = DirectionTypeOctaveShift a
+-- | Smart constructor for 'DirectionTypeHarpPedals'
+mkDirectionTypeHarpPedals :: HarpPedals -> ChxDirectionType
+mkDirectionTypeHarpPedals a = DirectionTypeHarpPedals a
+-- | Smart constructor for 'DirectionTypeDamp'
+mkDirectionTypeDamp :: EmptyPrintStyle -> ChxDirectionType
+mkDirectionTypeDamp a = DirectionTypeDamp a
+-- | Smart constructor for 'DirectionTypeDampAll'
+mkDirectionTypeDampAll :: EmptyPrintStyle -> ChxDirectionType
+mkDirectionTypeDampAll a = DirectionTypeDampAll a
+-- | Smart constructor for 'DirectionTypeEyeglasses'
+mkDirectionTypeEyeglasses :: EmptyPrintStyle -> ChxDirectionType
+mkDirectionTypeEyeglasses a = DirectionTypeEyeglasses a
+-- | Smart constructor for 'DirectionTypeScordatura'
+mkDirectionTypeScordatura :: Scordatura -> ChxDirectionType
+mkDirectionTypeScordatura a = DirectionTypeScordatura a
+-- | Smart constructor for 'DirectionTypeImage'
+mkDirectionTypeImage :: Image -> ChxDirectionType
+mkDirectionTypeImage a = DirectionTypeImage a
+-- | Smart constructor for 'DirectionTypeAccordionRegistration'
+mkDirectionTypeAccordionRegistration :: AccordionRegistration -> ChxDirectionType
+mkDirectionTypeAccordionRegistration a = DirectionTypeAccordionRegistration a
+-- | Smart constructor for 'DirectionTypeOtherDirection'
+mkDirectionTypeOtherDirection :: OtherDirection -> ChxDirectionType
+mkDirectionTypeOtherDirection a = DirectionTypeOtherDirection a
+
+-- | @dynamics@ /(choice)/
+data ChxDynamics = 
+      DynamicsP {
+          dynamicsP :: Empty -- ^ /p/ child element
+       }
+    | DynamicsPp {
+          dynamicsPp :: Empty -- ^ /pp/ child element
+       }
+    | DynamicsPpp {
+          dynamicsPpp :: Empty -- ^ /ppp/ child element
+       }
+    | DynamicsPppp {
+          dynamicsPppp :: Empty -- ^ /pppp/ child element
+       }
+    | DynamicsPpppp {
+          dynamicsPpppp :: Empty -- ^ /ppppp/ child element
+       }
+    | DynamicsPppppp {
+          dynamicsPppppp :: Empty -- ^ /pppppp/ child element
+       }
+    | DynamicsF {
+          dynamicsF :: Empty -- ^ /f/ child element
+       }
+    | DynamicsFf {
+          dynamicsFf :: Empty -- ^ /ff/ child element
+       }
+    | DynamicsFff {
+          dynamicsFff :: Empty -- ^ /fff/ child element
+       }
+    | DynamicsFfff {
+          dynamicsFfff :: Empty -- ^ /ffff/ child element
+       }
+    | DynamicsFffff {
+          dynamicsFffff :: Empty -- ^ /fffff/ child element
+       }
+    | DynamicsFfffff {
+          dynamicsFfffff :: Empty -- ^ /ffffff/ child element
+       }
+    | DynamicsMp {
+          dynamicsMp :: Empty -- ^ /mp/ child element
+       }
+    | DynamicsMf {
+          dynamicsMf :: Empty -- ^ /mf/ child element
+       }
+    | DynamicsSf {
+          dynamicsSf :: Empty -- ^ /sf/ child element
+       }
+    | DynamicsSfp {
+          dynamicsSfp :: Empty -- ^ /sfp/ child element
+       }
+    | DynamicsSfpp {
+          dynamicsSfpp :: Empty -- ^ /sfpp/ child element
+       }
+    | DynamicsFp {
+          dynamicsFp :: Empty -- ^ /fp/ child element
+       }
+    | DynamicsRf {
+          dynamicsRf :: Empty -- ^ /rf/ child element
+       }
+    | DynamicsRfz {
+          dynamicsRfz :: Empty -- ^ /rfz/ child element
+       }
+    | DynamicsSfz {
+          dynamicsSfz :: Empty -- ^ /sfz/ child element
+       }
+    | DynamicsSffz {
+          dynamicsSffz :: Empty -- ^ /sffz/ child element
+       }
+    | DynamicsFz {
+          dynamicsFz :: Empty -- ^ /fz/ child element
+       }
+    | DynamicsOtherDynamics {
+          dynamicsOtherDynamics :: String -- ^ /other-dynamics/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml ChxDynamics where
+    emitXml (DynamicsP a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "p" Nothing) (emitXml a)])
+    emitXml (DynamicsPp a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "pp" Nothing) (emitXml a)])
+    emitXml (DynamicsPpp a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "ppp" Nothing) (emitXml a)])
+    emitXml (DynamicsPppp a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "pppp" Nothing) (emitXml a)])
+    emitXml (DynamicsPpppp a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "ppppp" Nothing) (emitXml a)])
+    emitXml (DynamicsPppppp a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "pppppp" Nothing) (emitXml a)])
+    emitXml (DynamicsF a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "f" Nothing) (emitXml a)])
+    emitXml (DynamicsFf a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "ff" Nothing) (emitXml a)])
+    emitXml (DynamicsFff a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "fff" Nothing) (emitXml a)])
+    emitXml (DynamicsFfff a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "ffff" Nothing) (emitXml a)])
+    emitXml (DynamicsFffff a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "fffff" Nothing) (emitXml a)])
+    emitXml (DynamicsFfffff a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "ffffff" Nothing) (emitXml a)])
+    emitXml (DynamicsMp a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "mp" Nothing) (emitXml a)])
+    emitXml (DynamicsMf a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "mf" Nothing) (emitXml a)])
+    emitXml (DynamicsSf a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "sf" Nothing) (emitXml a)])
+    emitXml (DynamicsSfp a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "sfp" Nothing) (emitXml a)])
+    emitXml (DynamicsSfpp a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "sfpp" Nothing) (emitXml a)])
+    emitXml (DynamicsFp a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "fp" Nothing) (emitXml a)])
+    emitXml (DynamicsRf a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "rf" Nothing) (emitXml a)])
+    emitXml (DynamicsRfz a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "rfz" Nothing) (emitXml a)])
+    emitXml (DynamicsSfz a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "sfz" Nothing) (emitXml a)])
+    emitXml (DynamicsSffz a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "sffz" Nothing) (emitXml a)])
+    emitXml (DynamicsFz a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "fz" Nothing) (emitXml a)])
+    emitXml (DynamicsOtherDynamics a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "other-dynamics" Nothing) (emitXml a)])
+parseChxDynamics :: P.XParse ChxDynamics
+parseChxDynamics = 
+      DynamicsP
+        <$> (P.xchild (P.name "p") (parseEmpty))
+      <|> DynamicsPp
+        <$> (P.xchild (P.name "pp") (parseEmpty))
+      <|> DynamicsPpp
+        <$> (P.xchild (P.name "ppp") (parseEmpty))
+      <|> DynamicsPppp
+        <$> (P.xchild (P.name "pppp") (parseEmpty))
+      <|> DynamicsPpppp
+        <$> (P.xchild (P.name "ppppp") (parseEmpty))
+      <|> DynamicsPppppp
+        <$> (P.xchild (P.name "pppppp") (parseEmpty))
+      <|> DynamicsF
+        <$> (P.xchild (P.name "f") (parseEmpty))
+      <|> DynamicsFf
+        <$> (P.xchild (P.name "ff") (parseEmpty))
+      <|> DynamicsFff
+        <$> (P.xchild (P.name "fff") (parseEmpty))
+      <|> DynamicsFfff
+        <$> (P.xchild (P.name "ffff") (parseEmpty))
+      <|> DynamicsFffff
+        <$> (P.xchild (P.name "fffff") (parseEmpty))
+      <|> DynamicsFfffff
+        <$> (P.xchild (P.name "ffffff") (parseEmpty))
+      <|> DynamicsMp
+        <$> (P.xchild (P.name "mp") (parseEmpty))
+      <|> DynamicsMf
+        <$> (P.xchild (P.name "mf") (parseEmpty))
+      <|> DynamicsSf
+        <$> (P.xchild (P.name "sf") (parseEmpty))
+      <|> DynamicsSfp
+        <$> (P.xchild (P.name "sfp") (parseEmpty))
+      <|> DynamicsSfpp
+        <$> (P.xchild (P.name "sfpp") (parseEmpty))
+      <|> DynamicsFp
+        <$> (P.xchild (P.name "fp") (parseEmpty))
+      <|> DynamicsRf
+        <$> (P.xchild (P.name "rf") (parseEmpty))
+      <|> DynamicsRfz
+        <$> (P.xchild (P.name "rfz") (parseEmpty))
+      <|> DynamicsSfz
+        <$> (P.xchild (P.name "sfz") (parseEmpty))
+      <|> DynamicsSffz
+        <$> (P.xchild (P.name "sffz") (parseEmpty))
+      <|> DynamicsFz
+        <$> (P.xchild (P.name "fz") (parseEmpty))
+      <|> DynamicsOtherDynamics
+        <$> (P.xchild (P.name "other-dynamics") (P.xtext >>= return))
+
+-- | Smart constructor for 'DynamicsP'
+mkDynamicsP :: Empty -> ChxDynamics
+mkDynamicsP a = DynamicsP a
+-- | Smart constructor for 'DynamicsPp'
+mkDynamicsPp :: Empty -> ChxDynamics
+mkDynamicsPp a = DynamicsPp a
+-- | Smart constructor for 'DynamicsPpp'
+mkDynamicsPpp :: Empty -> ChxDynamics
+mkDynamicsPpp a = DynamicsPpp a
+-- | Smart constructor for 'DynamicsPppp'
+mkDynamicsPppp :: Empty -> ChxDynamics
+mkDynamicsPppp a = DynamicsPppp a
+-- | Smart constructor for 'DynamicsPpppp'
+mkDynamicsPpppp :: Empty -> ChxDynamics
+mkDynamicsPpppp a = DynamicsPpppp a
+-- | Smart constructor for 'DynamicsPppppp'
+mkDynamicsPppppp :: Empty -> ChxDynamics
+mkDynamicsPppppp a = DynamicsPppppp a
+-- | Smart constructor for 'DynamicsF'
+mkDynamicsF :: Empty -> ChxDynamics
+mkDynamicsF a = DynamicsF a
+-- | Smart constructor for 'DynamicsFf'
+mkDynamicsFf :: Empty -> ChxDynamics
+mkDynamicsFf a = DynamicsFf a
+-- | Smart constructor for 'DynamicsFff'
+mkDynamicsFff :: Empty -> ChxDynamics
+mkDynamicsFff a = DynamicsFff a
+-- | Smart constructor for 'DynamicsFfff'
+mkDynamicsFfff :: Empty -> ChxDynamics
+mkDynamicsFfff a = DynamicsFfff a
+-- | Smart constructor for 'DynamicsFffff'
+mkDynamicsFffff :: Empty -> ChxDynamics
+mkDynamicsFffff a = DynamicsFffff a
+-- | Smart constructor for 'DynamicsFfffff'
+mkDynamicsFfffff :: Empty -> ChxDynamics
+mkDynamicsFfffff a = DynamicsFfffff a
+-- | Smart constructor for 'DynamicsMp'
+mkDynamicsMp :: Empty -> ChxDynamics
+mkDynamicsMp a = DynamicsMp a
+-- | Smart constructor for 'DynamicsMf'
+mkDynamicsMf :: Empty -> ChxDynamics
+mkDynamicsMf a = DynamicsMf a
+-- | Smart constructor for 'DynamicsSf'
+mkDynamicsSf :: Empty -> ChxDynamics
+mkDynamicsSf a = DynamicsSf a
+-- | Smart constructor for 'DynamicsSfp'
+mkDynamicsSfp :: Empty -> ChxDynamics
+mkDynamicsSfp a = DynamicsSfp a
+-- | Smart constructor for 'DynamicsSfpp'
+mkDynamicsSfpp :: Empty -> ChxDynamics
+mkDynamicsSfpp a = DynamicsSfpp a
+-- | Smart constructor for 'DynamicsFp'
+mkDynamicsFp :: Empty -> ChxDynamics
+mkDynamicsFp a = DynamicsFp a
+-- | Smart constructor for 'DynamicsRf'
+mkDynamicsRf :: Empty -> ChxDynamics
+mkDynamicsRf a = DynamicsRf a
+-- | Smart constructor for 'DynamicsRfz'
+mkDynamicsRfz :: Empty -> ChxDynamics
+mkDynamicsRfz a = DynamicsRfz a
+-- | Smart constructor for 'DynamicsSfz'
+mkDynamicsSfz :: Empty -> ChxDynamics
+mkDynamicsSfz a = DynamicsSfz a
+-- | Smart constructor for 'DynamicsSffz'
+mkDynamicsSffz :: Empty -> ChxDynamics
+mkDynamicsSffz a = DynamicsSffz a
+-- | Smart constructor for 'DynamicsFz'
+mkDynamicsFz :: Empty -> ChxDynamics
+mkDynamicsFz a = DynamicsFz a
+-- | Smart constructor for 'DynamicsOtherDynamics'
+mkDynamicsOtherDynamics :: String -> ChxDynamics
+mkDynamicsOtherDynamics a = DynamicsOtherDynamics a
+
+-- | @encoding@ /(choice)/
+data ChxEncoding = 
+      EncodingEncodingDate {
+          encodingEncodingDate :: YyyyMmDd -- ^ /encoding-date/ child element
+       }
+    | EncodingEncoder {
+          encodingEncoder :: TypedText -- ^ /encoder/ child element
+       }
+    | EncodingSoftware {
+          encodingSoftware :: String -- ^ /software/ child element
+       }
+    | EncodingEncodingDescription {
+          encodingEncodingDescription :: String -- ^ /encoding-description/ child element
+       }
+    | EncodingSupports {
+          encodingSupports :: Supports -- ^ /supports/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml ChxEncoding where
+    emitXml (EncodingEncodingDate a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "encoding-date" Nothing) (emitXml a)])
+    emitXml (EncodingEncoder a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "encoder" Nothing) (emitXml a)])
+    emitXml (EncodingSoftware a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "software" Nothing) (emitXml a)])
+    emitXml (EncodingEncodingDescription a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "encoding-description" Nothing) (emitXml a)])
+    emitXml (EncodingSupports a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "supports" Nothing) (emitXml a)])
+parseChxEncoding :: P.XParse ChxEncoding
+parseChxEncoding = 
+      EncodingEncodingDate
+        <$> (P.xchild (P.name "encoding-date") (P.xtext >>= parseYyyyMmDd))
+      <|> EncodingEncoder
+        <$> (P.xchild (P.name "encoder") (parseTypedText))
+      <|> EncodingSoftware
+        <$> (P.xchild (P.name "software") (P.xtext >>= return))
+      <|> EncodingEncodingDescription
+        <$> (P.xchild (P.name "encoding-description") (P.xtext >>= return))
+      <|> EncodingSupports
+        <$> (P.xchild (P.name "supports") (parseSupports))
+
+-- | Smart constructor for 'EncodingEncodingDate'
+mkEncodingEncodingDate :: YyyyMmDd -> ChxEncoding
+mkEncodingEncodingDate a = EncodingEncodingDate a
+-- | Smart constructor for 'EncodingEncoder'
+mkEncodingEncoder :: TypedText -> ChxEncoding
+mkEncodingEncoder a = EncodingEncoder a
+-- | Smart constructor for 'EncodingSoftware'
+mkEncodingSoftware :: String -> ChxEncoding
+mkEncodingSoftware a = EncodingSoftware a
+-- | Smart constructor for 'EncodingEncodingDescription'
+mkEncodingEncodingDescription :: String -> ChxEncoding
+mkEncodingEncodingDescription a = EncodingEncodingDescription a
+-- | Smart constructor for 'EncodingSupports'
+mkEncodingSupports :: Supports -> ChxEncoding
+mkEncodingSupports a = EncodingSupports a
+
+-- | @full-note@ /(choice)/
+data FullNote = 
+      FullNotePitch {
+          fullNotePitch :: Pitch -- ^ /pitch/ child element
+       }
+    | FullNoteUnpitched {
+          fullNoteUnpitched :: DisplayStepOctave -- ^ /unpitched/ child element
+       }
+    | FullNoteRest {
+          fullNoteRest :: DisplayStepOctave -- ^ /rest/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml FullNote where
+    emitXml (FullNotePitch a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "pitch" Nothing) (emitXml a)])
+    emitXml (FullNoteUnpitched a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "unpitched" Nothing) (emitXml a)])
+    emitXml (FullNoteRest a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "rest" Nothing) (emitXml a)])
+parseFullNote :: P.XParse FullNote
+parseFullNote = 
+      FullNotePitch
+        <$> (P.xchild (P.name "pitch") (parsePitch))
+      <|> FullNoteUnpitched
+        <$> (P.xchild (P.name "unpitched") (parseDisplayStepOctave))
+      <|> FullNoteRest
+        <$> (P.xchild (P.name "rest") (parseDisplayStepOctave))
+
+-- | Smart constructor for 'FullNotePitch'
+mkFullNotePitch :: Pitch -> FullNote
+mkFullNotePitch a = FullNotePitch a
+-- | Smart constructor for 'FullNoteUnpitched'
+mkFullNoteUnpitched :: DisplayStepOctave -> FullNote
+mkFullNoteUnpitched a = FullNoteUnpitched a
+-- | Smart constructor for 'FullNoteRest'
+mkFullNoteRest :: DisplayStepOctave -> FullNote
+mkFullNoteRest a = FullNoteRest a
+
+-- | @harmonic@ /(choice)/
+data ChxHarmonic = 
+      HarmonicNatural {
+          harmonicNatural :: Empty -- ^ /natural/ child element
+       }
+    | HarmonicArtificial {
+          harmonicArtificial :: Empty -- ^ /artificial/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml ChxHarmonic where
+    emitXml (HarmonicNatural a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "natural" Nothing) (emitXml a)])
+    emitXml (HarmonicArtificial a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "artificial" Nothing) (emitXml a)])
+parseChxHarmonic :: P.XParse ChxHarmonic
+parseChxHarmonic = 
+      HarmonicNatural
+        <$> (P.xchild (P.name "natural") (parseEmpty))
+      <|> HarmonicArtificial
+        <$> (P.xchild (P.name "artificial") (parseEmpty))
+
+-- | Smart constructor for 'HarmonicNatural'
+mkHarmonicNatural :: Empty -> ChxHarmonic
+mkHarmonicNatural a = HarmonicNatural a
+-- | Smart constructor for 'HarmonicArtificial'
+mkHarmonicArtificial :: Empty -> ChxHarmonic
+mkHarmonicArtificial a = HarmonicArtificial a
+
+-- | @harmonic@ /(choice)/
+
+-- mangled: 1
+data ChxHarmonic1 = 
+      HarmonicBasePitch {
+          harmonicBasePitch :: Empty -- ^ /base-pitch/ child element
+       }
+    | HarmonicTouchingPitch {
+          harmonicTouchingPitch :: Empty -- ^ /touching-pitch/ child element
+       }
+    | HarmonicSoundingPitch {
+          harmonicSoundingPitch :: Empty -- ^ /sounding-pitch/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml ChxHarmonic1 where
+    emitXml (HarmonicBasePitch a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "base-pitch" Nothing) (emitXml a)])
+    emitXml (HarmonicTouchingPitch a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "touching-pitch" Nothing) (emitXml a)])
+    emitXml (HarmonicSoundingPitch a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "sounding-pitch" Nothing) (emitXml a)])
+parseChxHarmonic1 :: P.XParse ChxHarmonic1
+parseChxHarmonic1 = 
+      HarmonicBasePitch
+        <$> (P.xchild (P.name "base-pitch") (parseEmpty))
+      <|> HarmonicTouchingPitch
+        <$> (P.xchild (P.name "touching-pitch") (parseEmpty))
+      <|> HarmonicSoundingPitch
+        <$> (P.xchild (P.name "sounding-pitch") (parseEmpty))
+
+-- | Smart constructor for 'HarmonicBasePitch'
+mkHarmonicBasePitch :: Empty -> ChxHarmonic1
+mkHarmonicBasePitch a = HarmonicBasePitch a
+-- | Smart constructor for 'HarmonicTouchingPitch'
+mkHarmonicTouchingPitch :: Empty -> ChxHarmonic1
+mkHarmonicTouchingPitch a = HarmonicTouchingPitch a
+-- | Smart constructor for 'HarmonicSoundingPitch'
+mkHarmonicSoundingPitch :: Empty -> ChxHarmonic1
+mkHarmonicSoundingPitch a = HarmonicSoundingPitch a
+
+-- | @harmony-chord@ /(choice)/
+data ChxHarmonyChord = 
+      HarmonyChordRoot {
+          harmonyChordRoot :: Root -- ^ /root/ child element
+       }
+    | HarmonyChordFunction {
+          harmonyChordFunction :: StyleText -- ^ /function/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml ChxHarmonyChord where
+    emitXml (HarmonyChordRoot a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "root" Nothing) (emitXml a)])
+    emitXml (HarmonyChordFunction a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "function" Nothing) (emitXml a)])
+parseChxHarmonyChord :: P.XParse ChxHarmonyChord
+parseChxHarmonyChord = 
+      HarmonyChordRoot
+        <$> (P.xchild (P.name "root") (parseRoot))
+      <|> HarmonyChordFunction
+        <$> (P.xchild (P.name "function") (parseStyleText))
+
+-- | Smart constructor for 'HarmonyChordRoot'
+mkHarmonyChordRoot :: Root -> ChxHarmonyChord
+mkHarmonyChordRoot a = HarmonyChordRoot a
+-- | Smart constructor for 'HarmonyChordFunction'
+mkHarmonyChordFunction :: StyleText -> ChxHarmonyChord
+mkHarmonyChordFunction a = HarmonyChordFunction a
+
+-- | @key@ /(choice)/
+data ChxKey = 
+      KeyTraditionalKey {
+          keyTraditionalKey :: TraditionalKey
+       }
+    | KeyNonTraditionalKey {
+          keyNonTraditionalKey :: [NonTraditionalKey]
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml ChxKey where
+    emitXml (KeyTraditionalKey a) =
+      XReps [emitXml a]
+    emitXml (KeyNonTraditionalKey a) =
+      XReps [emitXml a]
+parseChxKey :: P.XParse ChxKey
+parseChxKey = 
+      KeyTraditionalKey
+        <$> parseTraditionalKey
+      <|> KeyNonTraditionalKey
+        <$> P.many (parseNonTraditionalKey)
+
+-- | Smart constructor for 'KeyTraditionalKey'
+mkKeyTraditionalKey :: TraditionalKey -> ChxKey
+mkKeyTraditionalKey a = KeyTraditionalKey a
+-- | Smart constructor for 'KeyNonTraditionalKey'
+mkKeyNonTraditionalKey :: ChxKey
+mkKeyNonTraditionalKey = KeyNonTraditionalKey []
+
+-- | @lyric@ /(choice)/
+data ChxLyric = 
+      LyricSyllabic {
+          lyricSyllabic :: (Maybe Syllabic) -- ^ /syllabic/ child element
+        , lyricText :: TextElementData -- ^ /text/ child element
+        , chxlyricLyric :: [SeqLyric]
+        , lyricExtend :: (Maybe Extend) -- ^ /extend/ child element
+       }
+    | LyricExtend {
+          lyricExtend1 :: Extend -- ^ /extend/ child element
+       }
+    | LyricLaughing {
+          lyricLaughing :: Empty -- ^ /laughing/ child element
+       }
+    | LyricHumming {
+          lyricHumming :: Empty -- ^ /humming/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml ChxLyric where
+    emitXml (LyricSyllabic a b c d) =
+      XContent XEmpty
+        []
+        ([maybe XEmpty (XElement (QN "syllabic" Nothing).emitXml) a] ++
+        [XElement (QN "text" Nothing) (emitXml b)] ++
+        [emitXml c] ++
+        [maybe XEmpty (XElement (QN "extend" Nothing).emitXml) d])
+    emitXml (LyricExtend a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "extend" Nothing) (emitXml a)])
+    emitXml (LyricLaughing a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "laughing" Nothing) (emitXml a)])
+    emitXml (LyricHumming a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "humming" Nothing) (emitXml a)])
+parseChxLyric :: P.XParse ChxLyric
+parseChxLyric = 
+      LyricSyllabic
+        <$> P.optional (P.xchild (P.name "syllabic") (P.xtext >>= parseSyllabic))
+        <*> (P.xchild (P.name "text") (parseTextElementData))
+        <*> P.many (parseSeqLyric)
+        <*> P.optional (P.xchild (P.name "extend") (parseExtend))
+      <|> LyricExtend
+        <$> (P.xchild (P.name "extend") (parseExtend))
+      <|> LyricLaughing
+        <$> (P.xchild (P.name "laughing") (parseEmpty))
+      <|> LyricHumming
+        <$> (P.xchild (P.name "humming") (parseEmpty))
+
+-- | Smart constructor for 'LyricSyllabic'
+mkLyricSyllabic :: TextElementData -> ChxLyric
+mkLyricSyllabic b = LyricSyllabic Nothing b [] Nothing
+-- | Smart constructor for 'LyricExtend'
+mkLyricExtend :: Extend -> ChxLyric
+mkLyricExtend a = LyricExtend a
+-- | Smart constructor for 'LyricLaughing'
+mkLyricLaughing :: Empty -> ChxLyric
+mkLyricLaughing a = LyricLaughing a
+-- | Smart constructor for 'LyricHumming'
+mkLyricHumming :: Empty -> ChxLyric
+mkLyricHumming a = LyricHumming a
+
+-- | @measure-style@ /(choice)/
+data ChxMeasureStyle = 
+      MeasureStyleMultipleRest {
+          measureStyleMultipleRest :: MultipleRest -- ^ /multiple-rest/ child element
+       }
+    | MeasureStyleMeasureRepeat {
+          measureStyleMeasureRepeat :: MeasureRepeat -- ^ /measure-repeat/ child element
+       }
+    | MeasureStyleBeatRepeat {
+          measureStyleBeatRepeat :: BeatRepeat -- ^ /beat-repeat/ child element
+       }
+    | MeasureStyleSlash {
+          measureStyleSlash :: CmpSlash -- ^ /slash/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml ChxMeasureStyle where
+    emitXml (MeasureStyleMultipleRest a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "multiple-rest" Nothing) (emitXml a)])
+    emitXml (MeasureStyleMeasureRepeat a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "measure-repeat" Nothing) (emitXml a)])
+    emitXml (MeasureStyleBeatRepeat a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "beat-repeat" Nothing) (emitXml a)])
+    emitXml (MeasureStyleSlash a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "slash" Nothing) (emitXml a)])
+parseChxMeasureStyle :: P.XParse ChxMeasureStyle
+parseChxMeasureStyle = 
+      MeasureStyleMultipleRest
+        <$> (P.xchild (P.name "multiple-rest") (parseMultipleRest))
+      <|> MeasureStyleMeasureRepeat
+        <$> (P.xchild (P.name "measure-repeat") (parseMeasureRepeat))
+      <|> MeasureStyleBeatRepeat
+        <$> (P.xchild (P.name "beat-repeat") (parseBeatRepeat))
+      <|> MeasureStyleSlash
+        <$> (P.xchild (P.name "slash") (parseCmpSlash))
+
+-- | Smart constructor for 'MeasureStyleMultipleRest'
+mkMeasureStyleMultipleRest :: MultipleRest -> ChxMeasureStyle
+mkMeasureStyleMultipleRest a = MeasureStyleMultipleRest a
+-- | Smart constructor for 'MeasureStyleMeasureRepeat'
+mkMeasureStyleMeasureRepeat :: MeasureRepeat -> ChxMeasureStyle
+mkMeasureStyleMeasureRepeat a = MeasureStyleMeasureRepeat a
+-- | Smart constructor for 'MeasureStyleBeatRepeat'
+mkMeasureStyleBeatRepeat :: BeatRepeat -> ChxMeasureStyle
+mkMeasureStyleBeatRepeat a = MeasureStyleBeatRepeat a
+-- | Smart constructor for 'MeasureStyleSlash'
+mkMeasureStyleSlash :: CmpSlash -> ChxMeasureStyle
+mkMeasureStyleSlash a = MeasureStyleSlash a
+
+-- | @metronome@ /(choice)/
+data ChxMetronome0 = 
+      MetronomePerMinute {
+          metronomePerMinute :: PerMinute -- ^ /per-minute/ child element
+       }
+    | MetronomeBeatUnit {
+          metronomeBeatUnit :: BeatUnit
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml ChxMetronome0 where
+    emitXml (MetronomePerMinute a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "per-minute" Nothing) (emitXml a)])
+    emitXml (MetronomeBeatUnit a) =
+      XReps [emitXml a]
+parseChxMetronome0 :: P.XParse ChxMetronome0
+parseChxMetronome0 = 
+      MetronomePerMinute
+        <$> (P.xchild (P.name "per-minute") (parsePerMinute))
+      <|> MetronomeBeatUnit
+        <$> parseBeatUnit
+
+-- | Smart constructor for 'MetronomePerMinute'
+mkMetronomePerMinute :: PerMinute -> ChxMetronome0
+mkMetronomePerMinute a = MetronomePerMinute a
+-- | Smart constructor for 'MetronomeBeatUnit'
+mkMetronomeBeatUnit :: BeatUnit -> ChxMetronome0
+mkMetronomeBeatUnit a = MetronomeBeatUnit a
+
+-- | @metronome@ /(choice)/
+
+-- mangled: 1
+data ChxMetronome = 
+      ChxMetronomeBeatUnit {
+          chxmetronomeBeatUnit :: BeatUnit
+        , chxmetronomeMetronome :: ChxMetronome0
+       }
+    | MetronomeMetronomeNote {
+          metronomeMetronomeNote :: [MetronomeNote] -- ^ /metronome-note/ child element
+        , metronomeMetronome1 :: (Maybe SeqMetronome)
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml ChxMetronome where
+    emitXml (ChxMetronomeBeatUnit a b) =
+      XReps [emitXml a,emitXml b]
+    emitXml (MetronomeMetronomeNote a b) =
+      XContent XEmpty
+        []
+        (map (XElement (QN "metronome-note" Nothing).emitXml) a ++
+        [emitXml b])
+parseChxMetronome :: P.XParse ChxMetronome
+parseChxMetronome = 
+      ChxMetronomeBeatUnit
+        <$> parseBeatUnit
+        <*> parseChxMetronome0
+      <|> MetronomeMetronomeNote
+        <$> P.many (P.xchild (P.name "metronome-note") (parseMetronomeNote))
+        <*> P.optional (parseSeqMetronome)
+
+-- | Smart constructor for 'ChxMetronomeBeatUnit'
+mkChxMetronomeBeatUnit :: BeatUnit -> ChxMetronome0 -> ChxMetronome
+mkChxMetronomeBeatUnit a b = ChxMetronomeBeatUnit a b
+-- | Smart constructor for 'MetronomeMetronomeNote'
+mkMetronomeMetronomeNote :: ChxMetronome
+mkMetronomeMetronomeNote = MetronomeMetronomeNote [] Nothing
+
+-- | @music-data@ /(choice)/
+data ChxMusicData = 
+      MusicDataNote {
+          musicDataNote :: Note -- ^ /note/ child element
+       }
+    | MusicDataBackup {
+          musicDataBackup :: Backup -- ^ /backup/ child element
+       }
+    | MusicDataForward {
+          musicDataForward :: Forward -- ^ /forward/ child element
+       }
+    | MusicDataDirection {
+          musicDataDirection :: Direction -- ^ /direction/ child element
+       }
+    | MusicDataAttributes {
+          musicDataAttributes :: Attributes -- ^ /attributes/ child element
+       }
+    | MusicDataHarmony {
+          musicDataHarmony :: Harmony -- ^ /harmony/ child element
+       }
+    | MusicDataFiguredBass {
+          musicDataFiguredBass :: FiguredBass -- ^ /figured-bass/ child element
+       }
+    | MusicDataPrint {
+          musicDataPrint :: Print -- ^ /print/ child element
+       }
+    | MusicDataSound {
+          musicDataSound :: Sound -- ^ /sound/ child element
+       }
+    | MusicDataBarline {
+          musicDataBarline :: Barline -- ^ /barline/ child element
+       }
+    | MusicDataGrouping {
+          musicDataGrouping :: Grouping -- ^ /grouping/ child element
+       }
+    | MusicDataLink {
+          musicDataLink :: Link -- ^ /link/ child element
+       }
+    | MusicDataBookmark {
+          musicDataBookmark :: Bookmark -- ^ /bookmark/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml ChxMusicData where
+    emitXml (MusicDataNote a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "note" Nothing) (emitXml a)])
+    emitXml (MusicDataBackup a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "backup" Nothing) (emitXml a)])
+    emitXml (MusicDataForward a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "forward" Nothing) (emitXml a)])
+    emitXml (MusicDataDirection a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "direction" Nothing) (emitXml a)])
+    emitXml (MusicDataAttributes a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "attributes" Nothing) (emitXml a)])
+    emitXml (MusicDataHarmony a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "harmony" Nothing) (emitXml a)])
+    emitXml (MusicDataFiguredBass a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "figured-bass" Nothing) (emitXml a)])
+    emitXml (MusicDataPrint a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "print" Nothing) (emitXml a)])
+    emitXml (MusicDataSound a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "sound" Nothing) (emitXml a)])
+    emitXml (MusicDataBarline a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "barline" Nothing) (emitXml a)])
+    emitXml (MusicDataGrouping a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "grouping" Nothing) (emitXml a)])
+    emitXml (MusicDataLink a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "link" Nothing) (emitXml a)])
+    emitXml (MusicDataBookmark a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "bookmark" Nothing) (emitXml a)])
+parseChxMusicData :: P.XParse ChxMusicData
+parseChxMusicData = 
+      MusicDataNote
+        <$> (P.xchild (P.name "note") (parseNote))
+      <|> MusicDataBackup
+        <$> (P.xchild (P.name "backup") (parseBackup))
+      <|> MusicDataForward
+        <$> (P.xchild (P.name "forward") (parseForward))
+      <|> MusicDataDirection
+        <$> (P.xchild (P.name "direction") (parseDirection))
+      <|> MusicDataAttributes
+        <$> (P.xchild (P.name "attributes") (parseAttributes))
+      <|> MusicDataHarmony
+        <$> (P.xchild (P.name "harmony") (parseHarmony))
+      <|> MusicDataFiguredBass
+        <$> (P.xchild (P.name "figured-bass") (parseFiguredBass))
+      <|> MusicDataPrint
+        <$> (P.xchild (P.name "print") (parsePrint))
+      <|> MusicDataSound
+        <$> (P.xchild (P.name "sound") (parseSound))
+      <|> MusicDataBarline
+        <$> (P.xchild (P.name "barline") (parseBarline))
+      <|> MusicDataGrouping
+        <$> (P.xchild (P.name "grouping") (parseGrouping))
+      <|> MusicDataLink
+        <$> (P.xchild (P.name "link") (parseLink))
+      <|> MusicDataBookmark
+        <$> (P.xchild (P.name "bookmark") (parseBookmark))
+
+-- | Smart constructor for 'MusicDataNote'
+mkMusicDataNote :: Note -> ChxMusicData
+mkMusicDataNote a = MusicDataNote a
+-- | Smart constructor for 'MusicDataBackup'
+mkMusicDataBackup :: Backup -> ChxMusicData
+mkMusicDataBackup a = MusicDataBackup a
+-- | Smart constructor for 'MusicDataForward'
+mkMusicDataForward :: Forward -> ChxMusicData
+mkMusicDataForward a = MusicDataForward a
+-- | Smart constructor for 'MusicDataDirection'
+mkMusicDataDirection :: Direction -> ChxMusicData
+mkMusicDataDirection a = MusicDataDirection a
+-- | Smart constructor for 'MusicDataAttributes'
+mkMusicDataAttributes :: Attributes -> ChxMusicData
+mkMusicDataAttributes a = MusicDataAttributes a
+-- | Smart constructor for 'MusicDataHarmony'
+mkMusicDataHarmony :: Harmony -> ChxMusicData
+mkMusicDataHarmony a = MusicDataHarmony a
+-- | Smart constructor for 'MusicDataFiguredBass'
+mkMusicDataFiguredBass :: FiguredBass -> ChxMusicData
+mkMusicDataFiguredBass a = MusicDataFiguredBass a
+-- | Smart constructor for 'MusicDataPrint'
+mkMusicDataPrint :: Print -> ChxMusicData
+mkMusicDataPrint a = MusicDataPrint a
+-- | Smart constructor for 'MusicDataSound'
+mkMusicDataSound :: Sound -> ChxMusicData
+mkMusicDataSound a = MusicDataSound a
+-- | Smart constructor for 'MusicDataBarline'
+mkMusicDataBarline :: Barline -> ChxMusicData
+mkMusicDataBarline a = MusicDataBarline a
+-- | Smart constructor for 'MusicDataGrouping'
+mkMusicDataGrouping :: Grouping -> ChxMusicData
+mkMusicDataGrouping a = MusicDataGrouping a
+-- | Smart constructor for 'MusicDataLink'
+mkMusicDataLink :: Link -> ChxMusicData
+mkMusicDataLink a = MusicDataLink a
+-- | Smart constructor for 'MusicDataBookmark'
+mkMusicDataBookmark :: Bookmark -> ChxMusicData
+mkMusicDataBookmark a = MusicDataBookmark a
+
+-- | @name-display@ /(choice)/
+data ChxNameDisplay = 
+      NameDisplayDisplayText {
+          nameDisplayDisplayText :: FormattedText -- ^ /display-text/ child element
+       }
+    | NameDisplayAccidentalText {
+          nameDisplayAccidentalText :: AccidentalText -- ^ /accidental-text/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml ChxNameDisplay where
+    emitXml (NameDisplayDisplayText a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "display-text" Nothing) (emitXml a)])
+    emitXml (NameDisplayAccidentalText a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "accidental-text" Nothing) (emitXml a)])
+parseChxNameDisplay :: P.XParse ChxNameDisplay
+parseChxNameDisplay = 
+      NameDisplayDisplayText
+        <$> (P.xchild (P.name "display-text") (parseFormattedText))
+      <|> NameDisplayAccidentalText
+        <$> (P.xchild (P.name "accidental-text") (parseAccidentalText))
+
+-- | Smart constructor for 'NameDisplayDisplayText'
+mkNameDisplayDisplayText :: FormattedText -> ChxNameDisplay
+mkNameDisplayDisplayText a = NameDisplayDisplayText a
+-- | Smart constructor for 'NameDisplayAccidentalText'
+mkNameDisplayAccidentalText :: AccidentalText -> ChxNameDisplay
+mkNameDisplayAccidentalText a = NameDisplayAccidentalText a
+
+-- | @notations@ /(choice)/
+data ChxNotations = 
+      NotationsTied {
+          notationsTied :: Tied -- ^ /tied/ child element
+       }
+    | NotationsSlur {
+          notationsSlur :: Slur -- ^ /slur/ child element
+       }
+    | NotationsTuplet {
+          notationsTuplet :: Tuplet -- ^ /tuplet/ child element
+       }
+    | NotationsGlissando {
+          notationsGlissando :: Glissando -- ^ /glissando/ child element
+       }
+    | NotationsSlide {
+          notationsSlide :: Slide -- ^ /slide/ child element
+       }
+    | NotationsOrnaments {
+          notationsOrnaments :: Ornaments -- ^ /ornaments/ child element
+       }
+    | NotationsTechnical {
+          notationsTechnical :: Technical -- ^ /technical/ child element
+       }
+    | NotationsArticulations {
+          notationsArticulations :: Articulations -- ^ /articulations/ child element
+       }
+    | NotationsDynamics {
+          notationsDynamics :: Dynamics -- ^ /dynamics/ child element
+       }
+    | NotationsFermata {
+          notationsFermata :: Fermata -- ^ /fermata/ child element
+       }
+    | NotationsArpeggiate {
+          notationsArpeggiate :: Arpeggiate -- ^ /arpeggiate/ child element
+       }
+    | NotationsNonArpeggiate {
+          notationsNonArpeggiate :: NonArpeggiate -- ^ /non-arpeggiate/ child element
+       }
+    | NotationsAccidentalMark {
+          notationsAccidentalMark :: AccidentalMark -- ^ /accidental-mark/ child element
+       }
+    | NotationsOtherNotation {
+          notationsOtherNotation :: OtherNotation -- ^ /other-notation/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml ChxNotations where
+    emitXml (NotationsTied a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "tied" Nothing) (emitXml a)])
+    emitXml (NotationsSlur a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "slur" Nothing) (emitXml a)])
+    emitXml (NotationsTuplet a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "tuplet" Nothing) (emitXml a)])
+    emitXml (NotationsGlissando a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "glissando" Nothing) (emitXml a)])
+    emitXml (NotationsSlide a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "slide" Nothing) (emitXml a)])
+    emitXml (NotationsOrnaments a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "ornaments" Nothing) (emitXml a)])
+    emitXml (NotationsTechnical a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "technical" Nothing) (emitXml a)])
+    emitXml (NotationsArticulations a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "articulations" Nothing) (emitXml a)])
+    emitXml (NotationsDynamics a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "dynamics" Nothing) (emitXml a)])
+    emitXml (NotationsFermata a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "fermata" Nothing) (emitXml a)])
+    emitXml (NotationsArpeggiate a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "arpeggiate" Nothing) (emitXml a)])
+    emitXml (NotationsNonArpeggiate a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "non-arpeggiate" Nothing) (emitXml a)])
+    emitXml (NotationsAccidentalMark a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "accidental-mark" Nothing) (emitXml a)])
+    emitXml (NotationsOtherNotation a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "other-notation" Nothing) (emitXml a)])
+parseChxNotations :: P.XParse ChxNotations
+parseChxNotations = 
+      NotationsTied
+        <$> (P.xchild (P.name "tied") (parseTied))
+      <|> NotationsSlur
+        <$> (P.xchild (P.name "slur") (parseSlur))
+      <|> NotationsTuplet
+        <$> (P.xchild (P.name "tuplet") (parseTuplet))
+      <|> NotationsGlissando
+        <$> (P.xchild (P.name "glissando") (parseGlissando))
+      <|> NotationsSlide
+        <$> (P.xchild (P.name "slide") (parseSlide))
+      <|> NotationsOrnaments
+        <$> (P.xchild (P.name "ornaments") (parseOrnaments))
+      <|> NotationsTechnical
+        <$> (P.xchild (P.name "technical") (parseTechnical))
+      <|> NotationsArticulations
+        <$> (P.xchild (P.name "articulations") (parseArticulations))
+      <|> NotationsDynamics
+        <$> (P.xchild (P.name "dynamics") (parseDynamics))
+      <|> NotationsFermata
+        <$> (P.xchild (P.name "fermata") (parseFermata))
+      <|> NotationsArpeggiate
+        <$> (P.xchild (P.name "arpeggiate") (parseArpeggiate))
+      <|> NotationsNonArpeggiate
+        <$> (P.xchild (P.name "non-arpeggiate") (parseNonArpeggiate))
+      <|> NotationsAccidentalMark
+        <$> (P.xchild (P.name "accidental-mark") (parseAccidentalMark))
+      <|> NotationsOtherNotation
+        <$> (P.xchild (P.name "other-notation") (parseOtherNotation))
+
+-- | Smart constructor for 'NotationsTied'
+mkNotationsTied :: Tied -> ChxNotations
+mkNotationsTied a = NotationsTied a
+-- | Smart constructor for 'NotationsSlur'
+mkNotationsSlur :: Slur -> ChxNotations
+mkNotationsSlur a = NotationsSlur a
+-- | Smart constructor for 'NotationsTuplet'
+mkNotationsTuplet :: Tuplet -> ChxNotations
+mkNotationsTuplet a = NotationsTuplet a
+-- | Smart constructor for 'NotationsGlissando'
+mkNotationsGlissando :: Glissando -> ChxNotations
+mkNotationsGlissando a = NotationsGlissando a
+-- | Smart constructor for 'NotationsSlide'
+mkNotationsSlide :: Slide -> ChxNotations
+mkNotationsSlide a = NotationsSlide a
+-- | Smart constructor for 'NotationsOrnaments'
+mkNotationsOrnaments :: Ornaments -> ChxNotations
+mkNotationsOrnaments a = NotationsOrnaments a
+-- | Smart constructor for 'NotationsTechnical'
+mkNotationsTechnical :: Technical -> ChxNotations
+mkNotationsTechnical a = NotationsTechnical a
+-- | Smart constructor for 'NotationsArticulations'
+mkNotationsArticulations :: Articulations -> ChxNotations
+mkNotationsArticulations a = NotationsArticulations a
+-- | Smart constructor for 'NotationsDynamics'
+mkNotationsDynamics :: Dynamics -> ChxNotations
+mkNotationsDynamics a = NotationsDynamics a
+-- | Smart constructor for 'NotationsFermata'
+mkNotationsFermata :: Fermata -> ChxNotations
+mkNotationsFermata a = NotationsFermata a
+-- | Smart constructor for 'NotationsArpeggiate'
+mkNotationsArpeggiate :: Arpeggiate -> ChxNotations
+mkNotationsArpeggiate a = NotationsArpeggiate a
+-- | Smart constructor for 'NotationsNonArpeggiate'
+mkNotationsNonArpeggiate :: NonArpeggiate -> ChxNotations
+mkNotationsNonArpeggiate a = NotationsNonArpeggiate a
+-- | Smart constructor for 'NotationsAccidentalMark'
+mkNotationsAccidentalMark :: AccidentalMark -> ChxNotations
+mkNotationsAccidentalMark a = NotationsAccidentalMark a
+-- | Smart constructor for 'NotationsOtherNotation'
+mkNotationsOtherNotation :: OtherNotation -> ChxNotations
+mkNotationsOtherNotation a = NotationsOtherNotation a
+
+-- | @note@ /(choice)/
+data ChxNote = 
+      NoteGrace {
+          noteGrace :: Grace -- ^ /grace/ child element
+        , noteFullNote :: GrpFullNote
+        , noteTie :: [Tie] -- ^ /tie/ child element
+       }
+    | NoteCue {
+          noteCue :: Empty -- ^ /cue/ child element
+        , noteFullNote1 :: GrpFullNote
+        , noteDuration :: Duration
+       }
+    | NoteFullNote {
+          noteFullNote2 :: GrpFullNote
+        , noteDuration1 :: Duration
+        , noteTie1 :: [Tie] -- ^ /tie/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml ChxNote where
+    emitXml (NoteGrace a b c) =
+      XContent XEmpty
+        []
+        ([XElement (QN "grace" Nothing) (emitXml a)] ++
+        [emitXml b] ++
+        map (XElement (QN "tie" Nothing).emitXml) c)
+    emitXml (NoteCue a b c) =
+      XContent XEmpty
+        []
+        ([XElement (QN "cue" Nothing) (emitXml a)] ++
+        [emitXml b] ++
+        [emitXml c])
+    emitXml (NoteFullNote a b c) =
+      XContent XEmpty
+        []
+        ([emitXml a] ++
+        [emitXml b] ++
+        map (XElement (QN "tie" Nothing).emitXml) c)
+parseChxNote :: P.XParse ChxNote
+parseChxNote = 
+      NoteGrace
+        <$> (P.xchild (P.name "grace") (parseGrace))
+        <*> parseGrpFullNote
+        <*> P.many (P.xchild (P.name "tie") (parseTie))
+      <|> NoteCue
+        <$> (P.xchild (P.name "cue") (parseEmpty))
+        <*> parseGrpFullNote
+        <*> parseDuration
+      <|> NoteFullNote
+        <$> parseGrpFullNote
+        <*> parseDuration
+        <*> P.many (P.xchild (P.name "tie") (parseTie))
+
+-- | Smart constructor for 'NoteGrace'
+mkNoteGrace :: Grace -> GrpFullNote -> ChxNote
+mkNoteGrace a b = NoteGrace a b []
+-- | Smart constructor for 'NoteCue'
+mkNoteCue :: Empty -> GrpFullNote -> Duration -> ChxNote
+mkNoteCue a b c = NoteCue a b c
+-- | Smart constructor for 'NoteFullNote'
+mkNoteFullNote :: GrpFullNote -> Duration -> ChxNote
+mkNoteFullNote a b = NoteFullNote a b []
+
+-- | @ornaments@ /(choice)/
+data ChxOrnaments = 
+      OrnamentsTrillMark {
+          ornamentsTrillMark :: EmptyTrillSound -- ^ /trill-mark/ child element
+       }
+    | OrnamentsTurn {
+          ornamentsTurn :: EmptyTrillSound -- ^ /turn/ child element
+       }
+    | OrnamentsDelayedTurn {
+          ornamentsDelayedTurn :: EmptyTrillSound -- ^ /delayed-turn/ child element
+       }
+    | OrnamentsInvertedTurn {
+          ornamentsInvertedTurn :: EmptyTrillSound -- ^ /inverted-turn/ child element
+       }
+    | OrnamentsShake {
+          ornamentsShake :: EmptyTrillSound -- ^ /shake/ child element
+       }
+    | OrnamentsWavyLine {
+          ornamentsWavyLine :: WavyLine -- ^ /wavy-line/ child element
+       }
+    | OrnamentsMordent {
+          ornamentsMordent :: Mordent -- ^ /mordent/ child element
+       }
+    | OrnamentsInvertedMordent {
+          ornamentsInvertedMordent :: Mordent -- ^ /inverted-mordent/ child element
+       }
+    | OrnamentsSchleifer {
+          ornamentsSchleifer :: EmptyPlacement -- ^ /schleifer/ child element
+       }
+    | OrnamentsTremolo {
+          ornamentsTremolo :: Tremolo -- ^ /tremolo/ child element
+       }
+    | OrnamentsOtherOrnament {
+          ornamentsOtherOrnament :: PlacementText -- ^ /other-ornament/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml ChxOrnaments where
+    emitXml (OrnamentsTrillMark a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "trill-mark" Nothing) (emitXml a)])
+    emitXml (OrnamentsTurn a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "turn" Nothing) (emitXml a)])
+    emitXml (OrnamentsDelayedTurn a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "delayed-turn" Nothing) (emitXml a)])
+    emitXml (OrnamentsInvertedTurn a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "inverted-turn" Nothing) (emitXml a)])
+    emitXml (OrnamentsShake a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "shake" Nothing) (emitXml a)])
+    emitXml (OrnamentsWavyLine a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "wavy-line" Nothing) (emitXml a)])
+    emitXml (OrnamentsMordent a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "mordent" Nothing) (emitXml a)])
+    emitXml (OrnamentsInvertedMordent a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "inverted-mordent" Nothing) (emitXml a)])
+    emitXml (OrnamentsSchleifer a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "schleifer" Nothing) (emitXml a)])
+    emitXml (OrnamentsTremolo a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "tremolo" Nothing) (emitXml a)])
+    emitXml (OrnamentsOtherOrnament a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "other-ornament" Nothing) (emitXml a)])
+parseChxOrnaments :: P.XParse ChxOrnaments
+parseChxOrnaments = 
+      OrnamentsTrillMark
+        <$> (P.xchild (P.name "trill-mark") (parseEmptyTrillSound))
+      <|> OrnamentsTurn
+        <$> (P.xchild (P.name "turn") (parseEmptyTrillSound))
+      <|> OrnamentsDelayedTurn
+        <$> (P.xchild (P.name "delayed-turn") (parseEmptyTrillSound))
+      <|> OrnamentsInvertedTurn
+        <$> (P.xchild (P.name "inverted-turn") (parseEmptyTrillSound))
+      <|> OrnamentsShake
+        <$> (P.xchild (P.name "shake") (parseEmptyTrillSound))
+      <|> OrnamentsWavyLine
+        <$> (P.xchild (P.name "wavy-line") (parseWavyLine))
+      <|> OrnamentsMordent
+        <$> (P.xchild (P.name "mordent") (parseMordent))
+      <|> OrnamentsInvertedMordent
+        <$> (P.xchild (P.name "inverted-mordent") (parseMordent))
+      <|> OrnamentsSchleifer
+        <$> (P.xchild (P.name "schleifer") (parseEmptyPlacement))
+      <|> OrnamentsTremolo
+        <$> (P.xchild (P.name "tremolo") (parseTremolo))
+      <|> OrnamentsOtherOrnament
+        <$> (P.xchild (P.name "other-ornament") (parsePlacementText))
+
+-- | Smart constructor for 'OrnamentsTrillMark'
+mkOrnamentsTrillMark :: EmptyTrillSound -> ChxOrnaments
+mkOrnamentsTrillMark a = OrnamentsTrillMark a
+-- | Smart constructor for 'OrnamentsTurn'
+mkOrnamentsTurn :: EmptyTrillSound -> ChxOrnaments
+mkOrnamentsTurn a = OrnamentsTurn a
+-- | Smart constructor for 'OrnamentsDelayedTurn'
+mkOrnamentsDelayedTurn :: EmptyTrillSound -> ChxOrnaments
+mkOrnamentsDelayedTurn a = OrnamentsDelayedTurn a
+-- | Smart constructor for 'OrnamentsInvertedTurn'
+mkOrnamentsInvertedTurn :: EmptyTrillSound -> ChxOrnaments
+mkOrnamentsInvertedTurn a = OrnamentsInvertedTurn a
+-- | Smart constructor for 'OrnamentsShake'
+mkOrnamentsShake :: EmptyTrillSound -> ChxOrnaments
+mkOrnamentsShake a = OrnamentsShake a
+-- | Smart constructor for 'OrnamentsWavyLine'
+mkOrnamentsWavyLine :: WavyLine -> ChxOrnaments
+mkOrnamentsWavyLine a = OrnamentsWavyLine a
+-- | Smart constructor for 'OrnamentsMordent'
+mkOrnamentsMordent :: Mordent -> ChxOrnaments
+mkOrnamentsMordent a = OrnamentsMordent a
+-- | Smart constructor for 'OrnamentsInvertedMordent'
+mkOrnamentsInvertedMordent :: Mordent -> ChxOrnaments
+mkOrnamentsInvertedMordent a = OrnamentsInvertedMordent a
+-- | Smart constructor for 'OrnamentsSchleifer'
+mkOrnamentsSchleifer :: EmptyPlacement -> ChxOrnaments
+mkOrnamentsSchleifer a = OrnamentsSchleifer a
+-- | Smart constructor for 'OrnamentsTremolo'
+mkOrnamentsTremolo :: Tremolo -> ChxOrnaments
+mkOrnamentsTremolo a = OrnamentsTremolo a
+-- | Smart constructor for 'OrnamentsOtherOrnament'
+mkOrnamentsOtherOrnament :: PlacementText -> ChxOrnaments
+mkOrnamentsOtherOrnament a = OrnamentsOtherOrnament a
+
+-- | @part-list@ /(choice)/
+data ChxPartList = 
+      PartListPartGroup {
+          chxpartListPartGroup :: GrpPartGroup
+       }
+    | PartListScorePart {
+          chxpartListScorePart :: ScorePart
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml ChxPartList where
+    emitXml (PartListPartGroup a) =
+      XReps [emitXml a]
+    emitXml (PartListScorePart a) =
+      XReps [emitXml a]
+parseChxPartList :: P.XParse ChxPartList
+parseChxPartList = 
+      PartListPartGroup
+        <$> parseGrpPartGroup
+      <|> PartListScorePart
+        <$> parseScorePart
+
+-- | Smart constructor for 'PartListPartGroup'
+mkPartListPartGroup :: GrpPartGroup -> ChxPartList
+mkPartListPartGroup a = PartListPartGroup a
+-- | Smart constructor for 'PartListScorePart'
+mkPartListScorePart :: ScorePart -> ChxPartList
+mkPartListScorePart a = PartListScorePart a
+
+-- | @score-instrument@ /(choice)/
+data ChxScoreInstrument = 
+      ScoreInstrumentSolo {
+          scoreInstrumentSolo :: Empty -- ^ /solo/ child element
+       }
+    | ScoreInstrumentEnsemble {
+          scoreInstrumentEnsemble :: PositiveIntegerOrEmpty -- ^ /ensemble/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml ChxScoreInstrument where
+    emitXml (ScoreInstrumentSolo a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "solo" Nothing) (emitXml a)])
+    emitXml (ScoreInstrumentEnsemble a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "ensemble" Nothing) (emitXml a)])
+parseChxScoreInstrument :: P.XParse ChxScoreInstrument
+parseChxScoreInstrument = 
+      ScoreInstrumentSolo
+        <$> (P.xchild (P.name "solo") (parseEmpty))
+      <|> ScoreInstrumentEnsemble
+        <$> (P.xchild (P.name "ensemble") (P.xtext >>= parsePositiveIntegerOrEmpty))
+
+-- | Smart constructor for 'ScoreInstrumentSolo'
+mkScoreInstrumentSolo :: Empty -> ChxScoreInstrument
+mkScoreInstrumentSolo a = ScoreInstrumentSolo a
+-- | Smart constructor for 'ScoreInstrumentEnsemble'
+mkScoreInstrumentEnsemble :: PositiveIntegerOrEmpty -> ChxScoreInstrument
+mkScoreInstrumentEnsemble a = ScoreInstrumentEnsemble a
+
+-- | @technical@ /(choice)/
+data ChxTechnical = 
+      TechnicalUpBow {
+          technicalUpBow :: EmptyPlacement -- ^ /up-bow/ child element
+       }
+    | TechnicalDownBow {
+          technicalDownBow :: EmptyPlacement -- ^ /down-bow/ child element
+       }
+    | TechnicalHarmonic {
+          technicalHarmonic :: Harmonic -- ^ /harmonic/ child element
+       }
+    | TechnicalOpenString {
+          technicalOpenString :: EmptyPlacement -- ^ /open-string/ child element
+       }
+    | TechnicalThumbPosition {
+          technicalThumbPosition :: EmptyPlacement -- ^ /thumb-position/ child element
+       }
+    | TechnicalFingering {
+          technicalFingering :: Fingering -- ^ /fingering/ child element
+       }
+    | TechnicalPluck {
+          technicalPluck :: PlacementText -- ^ /pluck/ child element
+       }
+    | TechnicalDoubleTongue {
+          technicalDoubleTongue :: EmptyPlacement -- ^ /double-tongue/ child element
+       }
+    | TechnicalTripleTongue {
+          technicalTripleTongue :: EmptyPlacement -- ^ /triple-tongue/ child element
+       }
+    | TechnicalStopped {
+          technicalStopped :: EmptyPlacement -- ^ /stopped/ child element
+       }
+    | TechnicalSnapPizzicato {
+          technicalSnapPizzicato :: EmptyPlacement -- ^ /snap-pizzicato/ child element
+       }
+    | TechnicalFret {
+          technicalFret :: Fret -- ^ /fret/ child element
+       }
+    | TechnicalString {
+          technicalString :: CmpString -- ^ /string/ child element
+       }
+    | TechnicalHammerOn {
+          technicalHammerOn :: HammerOnPullOff -- ^ /hammer-on/ child element
+       }
+    | TechnicalPullOff {
+          technicalPullOff :: HammerOnPullOff -- ^ /pull-off/ child element
+       }
+    | TechnicalBend {
+          technicalBend :: Bend -- ^ /bend/ child element
+       }
+    | TechnicalTap {
+          technicalTap :: PlacementText -- ^ /tap/ child element
+       }
+    | TechnicalHeel {
+          technicalHeel :: HeelToe -- ^ /heel/ child element
+       }
+    | TechnicalToe {
+          technicalToe :: HeelToe -- ^ /toe/ child element
+       }
+    | TechnicalFingernails {
+          technicalFingernails :: EmptyPlacement -- ^ /fingernails/ child element
+       }
+    | TechnicalOtherTechnical {
+          technicalOtherTechnical :: PlacementText -- ^ /other-technical/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml ChxTechnical where
+    emitXml (TechnicalUpBow a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "up-bow" Nothing) (emitXml a)])
+    emitXml (TechnicalDownBow a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "down-bow" Nothing) (emitXml a)])
+    emitXml (TechnicalHarmonic a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "harmonic" Nothing) (emitXml a)])
+    emitXml (TechnicalOpenString a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "open-string" Nothing) (emitXml a)])
+    emitXml (TechnicalThumbPosition a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "thumb-position" Nothing) (emitXml a)])
+    emitXml (TechnicalFingering a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "fingering" Nothing) (emitXml a)])
+    emitXml (TechnicalPluck a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "pluck" Nothing) (emitXml a)])
+    emitXml (TechnicalDoubleTongue a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "double-tongue" Nothing) (emitXml a)])
+    emitXml (TechnicalTripleTongue a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "triple-tongue" Nothing) (emitXml a)])
+    emitXml (TechnicalStopped a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "stopped" Nothing) (emitXml a)])
+    emitXml (TechnicalSnapPizzicato a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "snap-pizzicato" Nothing) (emitXml a)])
+    emitXml (TechnicalFret a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "fret" Nothing) (emitXml a)])
+    emitXml (TechnicalString a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "string" Nothing) (emitXml a)])
+    emitXml (TechnicalHammerOn a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "hammer-on" Nothing) (emitXml a)])
+    emitXml (TechnicalPullOff a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "pull-off" Nothing) (emitXml a)])
+    emitXml (TechnicalBend a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "bend" Nothing) (emitXml a)])
+    emitXml (TechnicalTap a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "tap" Nothing) (emitXml a)])
+    emitXml (TechnicalHeel a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "heel" Nothing) (emitXml a)])
+    emitXml (TechnicalToe a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "toe" Nothing) (emitXml a)])
+    emitXml (TechnicalFingernails a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "fingernails" Nothing) (emitXml a)])
+    emitXml (TechnicalOtherTechnical a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "other-technical" Nothing) (emitXml a)])
+parseChxTechnical :: P.XParse ChxTechnical
+parseChxTechnical = 
+      TechnicalUpBow
+        <$> (P.xchild (P.name "up-bow") (parseEmptyPlacement))
+      <|> TechnicalDownBow
+        <$> (P.xchild (P.name "down-bow") (parseEmptyPlacement))
+      <|> TechnicalHarmonic
+        <$> (P.xchild (P.name "harmonic") (parseHarmonic))
+      <|> TechnicalOpenString
+        <$> (P.xchild (P.name "open-string") (parseEmptyPlacement))
+      <|> TechnicalThumbPosition
+        <$> (P.xchild (P.name "thumb-position") (parseEmptyPlacement))
+      <|> TechnicalFingering
+        <$> (P.xchild (P.name "fingering") (parseFingering))
+      <|> TechnicalPluck
+        <$> (P.xchild (P.name "pluck") (parsePlacementText))
+      <|> TechnicalDoubleTongue
+        <$> (P.xchild (P.name "double-tongue") (parseEmptyPlacement))
+      <|> TechnicalTripleTongue
+        <$> (P.xchild (P.name "triple-tongue") (parseEmptyPlacement))
+      <|> TechnicalStopped
+        <$> (P.xchild (P.name "stopped") (parseEmptyPlacement))
+      <|> TechnicalSnapPizzicato
+        <$> (P.xchild (P.name "snap-pizzicato") (parseEmptyPlacement))
+      <|> TechnicalFret
+        <$> (P.xchild (P.name "fret") (parseFret))
+      <|> TechnicalString
+        <$> (P.xchild (P.name "string") (parseCmpString))
+      <|> TechnicalHammerOn
+        <$> (P.xchild (P.name "hammer-on") (parseHammerOnPullOff))
+      <|> TechnicalPullOff
+        <$> (P.xchild (P.name "pull-off") (parseHammerOnPullOff))
+      <|> TechnicalBend
+        <$> (P.xchild (P.name "bend") (parseBend))
+      <|> TechnicalTap
+        <$> (P.xchild (P.name "tap") (parsePlacementText))
+      <|> TechnicalHeel
+        <$> (P.xchild (P.name "heel") (parseHeelToe))
+      <|> TechnicalToe
+        <$> (P.xchild (P.name "toe") (parseHeelToe))
+      <|> TechnicalFingernails
+        <$> (P.xchild (P.name "fingernails") (parseEmptyPlacement))
+      <|> TechnicalOtherTechnical
+        <$> (P.xchild (P.name "other-technical") (parsePlacementText))
+
+-- | Smart constructor for 'TechnicalUpBow'
+mkTechnicalUpBow :: EmptyPlacement -> ChxTechnical
+mkTechnicalUpBow a = TechnicalUpBow a
+-- | Smart constructor for 'TechnicalDownBow'
+mkTechnicalDownBow :: EmptyPlacement -> ChxTechnical
+mkTechnicalDownBow a = TechnicalDownBow a
+-- | Smart constructor for 'TechnicalHarmonic'
+mkTechnicalHarmonic :: Harmonic -> ChxTechnical
+mkTechnicalHarmonic a = TechnicalHarmonic a
+-- | Smart constructor for 'TechnicalOpenString'
+mkTechnicalOpenString :: EmptyPlacement -> ChxTechnical
+mkTechnicalOpenString a = TechnicalOpenString a
+-- | Smart constructor for 'TechnicalThumbPosition'
+mkTechnicalThumbPosition :: EmptyPlacement -> ChxTechnical
+mkTechnicalThumbPosition a = TechnicalThumbPosition a
+-- | Smart constructor for 'TechnicalFingering'
+mkTechnicalFingering :: Fingering -> ChxTechnical
+mkTechnicalFingering a = TechnicalFingering a
+-- | Smart constructor for 'TechnicalPluck'
+mkTechnicalPluck :: PlacementText -> ChxTechnical
+mkTechnicalPluck a = TechnicalPluck a
+-- | Smart constructor for 'TechnicalDoubleTongue'
+mkTechnicalDoubleTongue :: EmptyPlacement -> ChxTechnical
+mkTechnicalDoubleTongue a = TechnicalDoubleTongue a
+-- | Smart constructor for 'TechnicalTripleTongue'
+mkTechnicalTripleTongue :: EmptyPlacement -> ChxTechnical
+mkTechnicalTripleTongue a = TechnicalTripleTongue a
+-- | Smart constructor for 'TechnicalStopped'
+mkTechnicalStopped :: EmptyPlacement -> ChxTechnical
+mkTechnicalStopped a = TechnicalStopped a
+-- | Smart constructor for 'TechnicalSnapPizzicato'
+mkTechnicalSnapPizzicato :: EmptyPlacement -> ChxTechnical
+mkTechnicalSnapPizzicato a = TechnicalSnapPizzicato a
+-- | Smart constructor for 'TechnicalFret'
+mkTechnicalFret :: Fret -> ChxTechnical
+mkTechnicalFret a = TechnicalFret a
+-- | Smart constructor for 'TechnicalString'
+mkTechnicalString :: CmpString -> ChxTechnical
+mkTechnicalString a = TechnicalString a
+-- | Smart constructor for 'TechnicalHammerOn'
+mkTechnicalHammerOn :: HammerOnPullOff -> ChxTechnical
+mkTechnicalHammerOn a = TechnicalHammerOn a
+-- | Smart constructor for 'TechnicalPullOff'
+mkTechnicalPullOff :: HammerOnPullOff -> ChxTechnical
+mkTechnicalPullOff a = TechnicalPullOff a
+-- | Smart constructor for 'TechnicalBend'
+mkTechnicalBend :: Bend -> ChxTechnical
+mkTechnicalBend a = TechnicalBend a
+-- | Smart constructor for 'TechnicalTap'
+mkTechnicalTap :: PlacementText -> ChxTechnical
+mkTechnicalTap a = TechnicalTap a
+-- | Smart constructor for 'TechnicalHeel'
+mkTechnicalHeel :: HeelToe -> ChxTechnical
+mkTechnicalHeel a = TechnicalHeel a
+-- | Smart constructor for 'TechnicalToe'
+mkTechnicalToe :: HeelToe -> ChxTechnical
+mkTechnicalToe a = TechnicalToe a
+-- | Smart constructor for 'TechnicalFingernails'
+mkTechnicalFingernails :: EmptyPlacement -> ChxTechnical
+mkTechnicalFingernails a = TechnicalFingernails a
+-- | Smart constructor for 'TechnicalOtherTechnical'
+mkTechnicalOtherTechnical :: PlacementText -> ChxTechnical
+mkTechnicalOtherTechnical a = TechnicalOtherTechnical a
+
+-- | @time@ /(choice)/
+data ChxTime = 
+      TimeTime {
+          chxtimeTime :: [SeqTime]
+       }
+    | TimeSenzaMisura {
+          timeSenzaMisura :: Empty -- ^ /senza-misura/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml ChxTime where
+    emitXml (TimeTime a) =
+      XReps [emitXml a]
+    emitXml (TimeSenzaMisura a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "senza-misura" Nothing) (emitXml a)])
+parseChxTime :: P.XParse ChxTime
+parseChxTime = 
+      TimeTime
+        <$> P.many (parseSeqTime)
+      <|> TimeSenzaMisura
+        <$> (P.xchild (P.name "senza-misura") (parseEmpty))
+
+-- | Smart constructor for 'TimeTime'
+mkTimeTime :: ChxTime
+mkTimeTime = TimeTime []
+-- | Smart constructor for 'TimeSenzaMisura'
+mkTimeSenzaMisura :: Empty -> ChxTime
+mkTimeSenzaMisura a = TimeSenzaMisura a
+
+-- | @credit@ /(sequence)/
+data SeqCredit = 
+      SeqCredit {
+          seqcreditLink :: [Link] -- ^ /link/ child element
+        , seqcreditBookmark :: [Bookmark] -- ^ /bookmark/ child element
+        , seqcreditCreditWords :: FormattedText -- ^ /credit-words/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml SeqCredit where
+    emitXml (SeqCredit a b c) =
+      XContent XEmpty
+        []
+        (map (XElement (QN "link" Nothing).emitXml) a ++
+        map (XElement (QN "bookmark" Nothing).emitXml) b ++
+        [XElement (QN "credit-words" Nothing) (emitXml c)])
+parseSeqCredit :: P.XParse SeqCredit
+parseSeqCredit = 
+      SeqCredit
+        <$> P.many (P.xchild (P.name "link") (parseLink))
+        <*> P.many (P.xchild (P.name "bookmark") (parseBookmark))
+        <*> (P.xchild (P.name "credit-words") (parseFormattedText))
+
+-- | Smart constructor for 'SeqCredit'
+mkSeqCredit :: FormattedText -> SeqCredit
+mkSeqCredit c = SeqCredit [] [] c
+
+-- | @display-step-octave@ /(sequence)/
+data SeqDisplayStepOctave = 
+      SeqDisplayStepOctave {
+          displayStepOctaveDisplayStep :: Step -- ^ /display-step/ child element
+        , displayStepOctaveDisplayOctave :: Octave -- ^ /display-octave/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml SeqDisplayStepOctave where
+    emitXml (SeqDisplayStepOctave a b) =
+      XContent XEmpty
+        []
+        ([XElement (QN "display-step" Nothing) (emitXml a)] ++
+        [XElement (QN "display-octave" Nothing) (emitXml b)])
+parseSeqDisplayStepOctave :: P.XParse SeqDisplayStepOctave
+parseSeqDisplayStepOctave = 
+      SeqDisplayStepOctave
+        <$> (P.xchild (P.name "display-step") (P.xtext >>= parseStep))
+        <*> (P.xchild (P.name "display-octave") (P.xtext >>= parseOctave))
+
+-- | Smart constructor for 'SeqDisplayStepOctave'
+mkSeqDisplayStepOctave :: Step -> Octave -> SeqDisplayStepOctave
+mkSeqDisplayStepOctave a b = SeqDisplayStepOctave a b
+
+-- | @lyric@ /(sequence)/
+data SeqLyric0 = 
+      SeqLyric0 {
+          lyricElision :: Elision -- ^ /elision/ child element
+        , seqlyricSyllabic :: (Maybe Syllabic) -- ^ /syllabic/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml SeqLyric0 where
+    emitXml (SeqLyric0 a b) =
+      XContent XEmpty
+        []
+        ([XElement (QN "elision" Nothing) (emitXml a)] ++
+        [maybe XEmpty (XElement (QN "syllabic" Nothing).emitXml) b])
+parseSeqLyric0 :: P.XParse SeqLyric0
+parseSeqLyric0 = 
+      SeqLyric0
+        <$> (P.xchild (P.name "elision") (parseElision))
+        <*> P.optional (P.xchild (P.name "syllabic") (P.xtext >>= parseSyllabic))
+
+-- | Smart constructor for 'SeqLyric0'
+mkSeqLyric0 :: Elision -> SeqLyric0
+mkSeqLyric0 a = SeqLyric0 a Nothing
+
+-- | @lyric@ /(sequence)/
+
+-- mangled: 1
+data SeqLyric = 
+      SeqLyric {
+          seqlyricLyric :: (Maybe SeqLyric0)
+        , seqlyricText :: TextElementData -- ^ /text/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml SeqLyric where
+    emitXml (SeqLyric a b) =
+      XContent XEmpty
+        []
+        ([emitXml a] ++
+        [XElement (QN "text" Nothing) (emitXml b)])
+parseSeqLyric :: P.XParse SeqLyric
+parseSeqLyric = 
+      SeqLyric
+        <$> P.optional (parseSeqLyric0)
+        <*> (P.xchild (P.name "text") (parseTextElementData))
+
+-- | Smart constructor for 'SeqLyric'
+mkSeqLyric :: TextElementData -> SeqLyric
+mkSeqLyric b = SeqLyric Nothing b
+
+-- | @metronome@ /(sequence)/
+data SeqMetronome = 
+      SeqMetronome {
+          metronomeMetronomeRelation :: String -- ^ /metronome-relation/ child element
+        , seqmetronomeMetronomeNote :: [MetronomeNote] -- ^ /metronome-note/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml SeqMetronome where
+    emitXml (SeqMetronome a b) =
+      XContent XEmpty
+        []
+        ([XElement (QN "metronome-relation" Nothing) (emitXml a)] ++
+        map (XElement (QN "metronome-note" Nothing).emitXml) b)
+parseSeqMetronome :: P.XParse SeqMetronome
+parseSeqMetronome = 
+      SeqMetronome
+        <$> (P.xchild (P.name "metronome-relation") (P.xtext >>= return))
+        <*> P.many (P.xchild (P.name "metronome-note") (parseMetronomeNote))
+
+-- | Smart constructor for 'SeqMetronome'
+mkSeqMetronome :: String -> SeqMetronome
+mkSeqMetronome a = SeqMetronome a []
+
+-- | @metronome-tuplet@ /(sequence)/
+data SeqMetronomeTuplet = 
+      SeqMetronomeTuplet {
+          metronomeTupletNormalType :: NoteTypeValue -- ^ /normal-type/ child element
+        , metronomeTupletNormalDot :: [Empty] -- ^ /normal-dot/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml SeqMetronomeTuplet where
+    emitXml (SeqMetronomeTuplet a b) =
+      XContent XEmpty
+        []
+        ([XElement (QN "normal-type" Nothing) (emitXml a)] ++
+        map (XElement (QN "normal-dot" Nothing).emitXml) b)
+parseSeqMetronomeTuplet :: P.XParse SeqMetronomeTuplet
+parseSeqMetronomeTuplet = 
+      SeqMetronomeTuplet
+        <$> (P.xchild (P.name "normal-type") (P.xtext >>= parseNoteTypeValue))
+        <*> P.many (P.xchild (P.name "normal-dot") (parseEmpty))
+
+-- | Smart constructor for 'SeqMetronomeTuplet'
+mkSeqMetronomeTuplet :: NoteTypeValue -> SeqMetronomeTuplet
+mkSeqMetronomeTuplet a = SeqMetronomeTuplet a []
+
+-- | @ornaments@ /(sequence)/
+data SeqOrnaments = 
+      SeqOrnaments {
+          seqornamentsOrnaments :: ChxOrnaments
+        , ornamentsAccidentalMark :: [AccidentalMark] -- ^ /accidental-mark/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml SeqOrnaments where
+    emitXml (SeqOrnaments a b) =
+      XContent XEmpty
+        []
+        ([emitXml a] ++
+        map (XElement (QN "accidental-mark" Nothing).emitXml) b)
+parseSeqOrnaments :: P.XParse SeqOrnaments
+parseSeqOrnaments = 
+      SeqOrnaments
+        <$> parseChxOrnaments
+        <*> P.many (P.xchild (P.name "accidental-mark") (parseAccidentalMark))
+
+-- | Smart constructor for 'SeqOrnaments'
+mkSeqOrnaments :: ChxOrnaments -> SeqOrnaments
+mkSeqOrnaments a = SeqOrnaments a []
+
+-- | @page-layout@ /(sequence)/
+data SeqPageLayout = 
+      SeqPageLayout {
+          pageLayoutPageHeight :: Tenths -- ^ /page-height/ child element
+        , pageLayoutPageWidth :: Tenths -- ^ /page-width/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml SeqPageLayout where
+    emitXml (SeqPageLayout a b) =
+      XContent XEmpty
+        []
+        ([XElement (QN "page-height" Nothing) (emitXml a)] ++
+        [XElement (QN "page-width" Nothing) (emitXml b)])
+parseSeqPageLayout :: P.XParse SeqPageLayout
+parseSeqPageLayout = 
+      SeqPageLayout
+        <$> (P.xchild (P.name "page-height") (P.xtext >>= parseTenths))
+        <*> (P.xchild (P.name "page-width") (P.xtext >>= parseTenths))
+
+-- | Smart constructor for 'SeqPageLayout'
+mkSeqPageLayout :: Tenths -> Tenths -> SeqPageLayout
+mkSeqPageLayout a b = SeqPageLayout a b
+
+-- | @time@ /(sequence)/
+data SeqTime = 
+      SeqTime {
+          timeBeats :: String -- ^ /beats/ child element
+        , timeBeatType :: String -- ^ /beat-type/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml SeqTime where
+    emitXml (SeqTime a b) =
+      XContent XEmpty
+        []
+        ([XElement (QN "beats" Nothing) (emitXml a)] ++
+        [XElement (QN "beat-type" Nothing) (emitXml b)])
+parseSeqTime :: P.XParse SeqTime
+parseSeqTime = 
+      SeqTime
+        <$> (P.xchild (P.name "beats") (P.xtext >>= return))
+        <*> (P.xchild (P.name "beat-type") (P.xtext >>= return))
+
+-- | Smart constructor for 'SeqTime'
+mkSeqTime :: String -> String -> SeqTime
+mkSeqTime a b = SeqTime a b
+
+-- | @time-modification@ /(sequence)/
+data SeqTimeModification = 
+      SeqTimeModification {
+          timeModificationNormalType :: NoteTypeValue -- ^ /normal-type/ child element
+        , timeModificationNormalDot :: [Empty] -- ^ /normal-dot/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml SeqTimeModification where
+    emitXml (SeqTimeModification a b) =
+      XContent XEmpty
+        []
+        ([XElement (QN "normal-type" Nothing) (emitXml a)] ++
+        map (XElement (QN "normal-dot" Nothing).emitXml) b)
+parseSeqTimeModification :: P.XParse SeqTimeModification
+parseSeqTimeModification = 
+      SeqTimeModification
+        <$> (P.xchild (P.name "normal-type") (P.xtext >>= parseNoteTypeValue))
+        <*> P.many (P.xchild (P.name "normal-dot") (parseEmpty))
+
+-- | Smart constructor for 'SeqTimeModification'
+mkSeqTimeModification :: NoteTypeValue -> SeqTimeModification
+mkSeqTimeModification a = SeqTimeModification a []
+
+-- | @all-margins@ /(group)/
+data AllMargins = 
+      AllMargins {
+          allMarginsLeftRightMargins :: LeftRightMargins
+        , allMarginsTopMargin :: Tenths -- ^ /top-margin/ child element
+        , allMarginsBottomMargin :: Tenths -- ^ /bottom-margin/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml AllMargins where
+    emitXml (AllMargins a b c) =
+      XContent XEmpty
+        []
+        ([emitXml a] ++
+        [XElement (QN "top-margin" Nothing) (emitXml b)] ++
+        [XElement (QN "bottom-margin" Nothing) (emitXml c)])
+parseAllMargins :: P.XParse AllMargins
+parseAllMargins = 
+      AllMargins
+        <$> parseLeftRightMargins
+        <*> (P.xchild (P.name "top-margin") (P.xtext >>= parseTenths))
+        <*> (P.xchild (P.name "bottom-margin") (P.xtext >>= parseTenths))
+
+-- | Smart constructor for 'AllMargins'
+mkAllMargins :: LeftRightMargins -> Tenths -> Tenths -> AllMargins
+mkAllMargins a b c = AllMargins a b c
+
+-- | @beat-unit@ /(group)/
+data BeatUnit = 
+      BeatUnit {
+          beatUnitBeatUnit :: NoteTypeValue -- ^ /beat-unit/ child element
+        , beatUnitBeatUnitDot :: [Empty] -- ^ /beat-unit-dot/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml BeatUnit where
+    emitXml (BeatUnit a b) =
+      XContent XEmpty
+        []
+        ([XElement (QN "beat-unit" Nothing) (emitXml a)] ++
+        map (XElement (QN "beat-unit-dot" Nothing).emitXml) b)
+parseBeatUnit :: P.XParse BeatUnit
+parseBeatUnit = 
+      BeatUnit
+        <$> (P.xchild (P.name "beat-unit") (P.xtext >>= parseNoteTypeValue))
+        <*> P.many (P.xchild (P.name "beat-unit-dot") (parseEmpty))
+
+-- | Smart constructor for 'BeatUnit'
+mkBeatUnit :: NoteTypeValue -> BeatUnit
+mkBeatUnit a = BeatUnit a []
+
+-- | @duration@ /(group)/
+data Duration = 
+      Duration {
+          durationDuration :: PositiveDivisions -- ^ /duration/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Duration where
+    emitXml (Duration a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "duration" Nothing) (emitXml a)])
+parseDuration :: P.XParse Duration
+parseDuration = 
+      Duration
+        <$> (P.xchild (P.name "duration") (P.xtext >>= parsePositiveDivisions))
+
+-- | Smart constructor for 'Duration'
+mkDuration :: PositiveDivisions -> Duration
+mkDuration a = Duration a
+
+-- | @editorial@ /(group)/
+data Editorial = 
+      Editorial {
+          editorialFootnote :: (Maybe Footnote)
+        , editorialLevel :: (Maybe GrpLevel)
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Editorial where
+    emitXml (Editorial a b) =
+      XReps [emitXml a,emitXml b]
+parseEditorial :: P.XParse Editorial
+parseEditorial = 
+      Editorial
+        <$> P.optional (parseFootnote)
+        <*> P.optional (parseGrpLevel)
+
+-- | Smart constructor for 'Editorial'
+mkEditorial :: Editorial
+mkEditorial = Editorial Nothing Nothing
+
+-- | @editorial-voice@ /(group)/
+data EditorialVoice = 
+      EditorialVoice {
+          editorialVoiceFootnote :: (Maybe Footnote)
+        , editorialVoiceLevel :: (Maybe GrpLevel)
+        , editorialVoiceVoice :: (Maybe Voice)
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml EditorialVoice where
+    emitXml (EditorialVoice a b c) =
+      XReps [emitXml a,emitXml b,emitXml c]
+parseEditorialVoice :: P.XParse EditorialVoice
+parseEditorialVoice = 
+      EditorialVoice
+        <$> P.optional (parseFootnote)
+        <*> P.optional (parseGrpLevel)
+        <*> P.optional (parseVoice)
+
+-- | Smart constructor for 'EditorialVoice'
+mkEditorialVoice :: EditorialVoice
+mkEditorialVoice = EditorialVoice Nothing Nothing Nothing
+
+-- | @editorial-voice-direction@ /(group)/
+data EditorialVoiceDirection = 
+      EditorialVoiceDirection {
+          editorialVoiceDirectionFootnote :: (Maybe Footnote)
+        , editorialVoiceDirectionLevel :: (Maybe GrpLevel)
+        , editorialVoiceDirectionVoice :: (Maybe Voice)
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml EditorialVoiceDirection where
+    emitXml (EditorialVoiceDirection a b c) =
+      XReps [emitXml a,emitXml b,emitXml c]
+parseEditorialVoiceDirection :: P.XParse EditorialVoiceDirection
+parseEditorialVoiceDirection = 
+      EditorialVoiceDirection
+        <$> P.optional (parseFootnote)
+        <*> P.optional (parseGrpLevel)
+        <*> P.optional (parseVoice)
+
+-- | Smart constructor for 'EditorialVoiceDirection'
+mkEditorialVoiceDirection :: EditorialVoiceDirection
+mkEditorialVoiceDirection = EditorialVoiceDirection Nothing Nothing Nothing
+
+-- | @footnote@ /(group)/
+data Footnote = 
+      Footnote {
+          footnoteFootnote :: FormattedText -- ^ /footnote/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Footnote where
+    emitXml (Footnote a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "footnote" Nothing) (emitXml a)])
+parseFootnote :: P.XParse Footnote
+parseFootnote = 
+      Footnote
+        <$> (P.xchild (P.name "footnote") (parseFormattedText))
+
+-- | Smart constructor for 'Footnote'
+mkFootnote :: FormattedText -> Footnote
+mkFootnote a = Footnote a
+
+-- | @full-note@ /(group)/
+data GrpFullNote = 
+      GrpFullNote {
+          fullNoteChord :: (Maybe Empty) -- ^ /chord/ child element
+        , fullNoteFullNote :: FullNote
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml GrpFullNote where
+    emitXml (GrpFullNote a b) =
+      XContent XEmpty
+        []
+        ([maybe XEmpty (XElement (QN "chord" Nothing).emitXml) a] ++
+        [emitXml b])
+parseGrpFullNote :: P.XParse GrpFullNote
+parseGrpFullNote = 
+      GrpFullNote
+        <$> P.optional (P.xchild (P.name "chord") (parseEmpty))
+        <*> parseFullNote
+
+-- | Smart constructor for 'GrpFullNote'
+mkGrpFullNote :: FullNote -> GrpFullNote
+mkGrpFullNote b = GrpFullNote Nothing b
+
+-- | @harmony-chord@ /(group)/
+data HarmonyChord = 
+      HarmonyChord {
+          harmonyChordHarmonyChord :: ChxHarmonyChord
+        , harmonyChordKind :: Kind -- ^ /kind/ child element
+        , harmonyChordInversion :: (Maybe Inversion) -- ^ /inversion/ child element
+        , harmonyChordBass :: (Maybe Bass) -- ^ /bass/ child element
+        , harmonyChordDegree :: [Degree] -- ^ /degree/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml HarmonyChord where
+    emitXml (HarmonyChord a b c d e) =
+      XContent XEmpty
+        []
+        ([emitXml a] ++
+        [XElement (QN "kind" Nothing) (emitXml b)] ++
+        [maybe XEmpty (XElement (QN "inversion" Nothing).emitXml) c] ++
+        [maybe XEmpty (XElement (QN "bass" Nothing).emitXml) d] ++
+        map (XElement (QN "degree" Nothing).emitXml) e)
+parseHarmonyChord :: P.XParse HarmonyChord
+parseHarmonyChord = 
+      HarmonyChord
+        <$> parseChxHarmonyChord
+        <*> (P.xchild (P.name "kind") (parseKind))
+        <*> P.optional (P.xchild (P.name "inversion") (parseInversion))
+        <*> P.optional (P.xchild (P.name "bass") (parseBass))
+        <*> P.many (P.xchild (P.name "degree") (parseDegree))
+
+-- | Smart constructor for 'HarmonyChord'
+mkHarmonyChord :: ChxHarmonyChord -> Kind -> HarmonyChord
+mkHarmonyChord a b = HarmonyChord a b Nothing Nothing []
+
+-- | @layout@ /(group)/
+data Layout = 
+      Layout {
+          layoutPageLayout :: (Maybe PageLayout) -- ^ /page-layout/ child element
+        , layoutSystemLayout :: (Maybe SystemLayout) -- ^ /system-layout/ child element
+        , layoutStaffLayout :: [StaffLayout] -- ^ /staff-layout/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Layout where
+    emitXml (Layout a b c) =
+      XContent XEmpty
+        []
+        ([maybe XEmpty (XElement (QN "page-layout" Nothing).emitXml) a] ++
+        [maybe XEmpty (XElement (QN "system-layout" Nothing).emitXml) b] ++
+        map (XElement (QN "staff-layout" Nothing).emitXml) c)
+parseLayout :: P.XParse Layout
+parseLayout = 
+      Layout
+        <$> P.optional (P.xchild (P.name "page-layout") (parsePageLayout))
+        <*> P.optional (P.xchild (P.name "system-layout") (parseSystemLayout))
+        <*> P.many (P.xchild (P.name "staff-layout") (parseStaffLayout))
+
+-- | Smart constructor for 'Layout'
+mkLayout :: Layout
+mkLayout = Layout Nothing Nothing []
+
+-- | @left-right-margins@ /(group)/
+data LeftRightMargins = 
+      LeftRightMargins {
+          leftRightMarginsLeftMargin :: Tenths -- ^ /left-margin/ child element
+        , leftRightMarginsRightMargin :: Tenths -- ^ /right-margin/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml LeftRightMargins where
+    emitXml (LeftRightMargins a b) =
+      XContent XEmpty
+        []
+        ([XElement (QN "left-margin" Nothing) (emitXml a)] ++
+        [XElement (QN "right-margin" Nothing) (emitXml b)])
+parseLeftRightMargins :: P.XParse LeftRightMargins
+parseLeftRightMargins = 
+      LeftRightMargins
+        <$> (P.xchild (P.name "left-margin") (P.xtext >>= parseTenths))
+        <*> (P.xchild (P.name "right-margin") (P.xtext >>= parseTenths))
+
+-- | Smart constructor for 'LeftRightMargins'
+mkLeftRightMargins :: Tenths -> Tenths -> LeftRightMargins
+mkLeftRightMargins a b = LeftRightMargins a b
+
+-- | @level@ /(group)/
+data GrpLevel = 
+      GrpLevel {
+          levelLevel :: Level -- ^ /level/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml GrpLevel where
+    emitXml (GrpLevel a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "level" Nothing) (emitXml a)])
+parseGrpLevel :: P.XParse GrpLevel
+parseGrpLevel = 
+      GrpLevel
+        <$> (P.xchild (P.name "level") (parseLevel))
+
+-- | Smart constructor for 'GrpLevel'
+mkGrpLevel :: Level -> GrpLevel
+mkGrpLevel a = GrpLevel a
+
+-- | @music-data@ /(group)/
+data MusicData = 
+      MusicData {
+          musicDataMusicData :: [ChxMusicData]
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml MusicData where
+    emitXml (MusicData a) =
+      XReps [emitXml a]
+parseMusicData :: P.XParse MusicData
+parseMusicData = 
+      MusicData
+        <$> P.many (parseChxMusicData)
+
+-- | Smart constructor for 'MusicData'
+mkMusicData :: MusicData
+mkMusicData = MusicData []
+
+-- | @non-traditional-key@ /(group)/
+data NonTraditionalKey = 
+      NonTraditionalKey {
+          nonTraditionalKeyKeyStep :: Step -- ^ /key-step/ child element
+        , nonTraditionalKeyKeyAlter :: Semitones -- ^ /key-alter/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml NonTraditionalKey where
+    emitXml (NonTraditionalKey a b) =
+      XContent XEmpty
+        []
+        ([XElement (QN "key-step" Nothing) (emitXml a)] ++
+        [XElement (QN "key-alter" Nothing) (emitXml b)])
+parseNonTraditionalKey :: P.XParse NonTraditionalKey
+parseNonTraditionalKey = 
+      NonTraditionalKey
+        <$> (P.xchild (P.name "key-step") (P.xtext >>= parseStep))
+        <*> (P.xchild (P.name "key-alter") (P.xtext >>= parseSemitones))
+
+-- | Smart constructor for 'NonTraditionalKey'
+mkNonTraditionalKey :: Step -> Semitones -> NonTraditionalKey
+mkNonTraditionalKey a b = NonTraditionalKey a b
+
+-- | @part-group@ /(group)/
+data GrpPartGroup = 
+      GrpPartGroup {
+          partGroupPartGroup :: PartGroup -- ^ /part-group/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml GrpPartGroup where
+    emitXml (GrpPartGroup a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "part-group" Nothing) (emitXml a)])
+parseGrpPartGroup :: P.XParse GrpPartGroup
+parseGrpPartGroup = 
+      GrpPartGroup
+        <$> (P.xchild (P.name "part-group") (parsePartGroup))
+
+-- | Smart constructor for 'GrpPartGroup'
+mkGrpPartGroup :: PartGroup -> GrpPartGroup
+mkGrpPartGroup a = GrpPartGroup a
+
+-- | @score-header@ /(group)/
+data ScoreHeader = 
+      ScoreHeader {
+          scoreHeaderWork :: (Maybe Work) -- ^ /work/ child element
+        , scoreHeaderMovementNumber :: (Maybe String) -- ^ /movement-number/ child element
+        , scoreHeaderMovementTitle :: (Maybe String) -- ^ /movement-title/ child element
+        , scoreHeaderIdentification :: (Maybe Identification) -- ^ /identification/ child element
+        , scoreHeaderDefaults :: (Maybe Defaults) -- ^ /defaults/ child element
+        , scoreHeaderCredit :: [Credit] -- ^ /credit/ child element
+        , scoreHeaderPartList :: PartList -- ^ /part-list/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml ScoreHeader where
+    emitXml (ScoreHeader a b c d e f g) =
+      XContent XEmpty
+        []
+        ([maybe XEmpty (XElement (QN "work" Nothing).emitXml) a] ++
+        [maybe XEmpty (XElement (QN "movement-number" Nothing).emitXml) b] ++
+        [maybe XEmpty (XElement (QN "movement-title" Nothing).emitXml) c] ++
+        [maybe XEmpty (XElement (QN "identification" Nothing).emitXml) d] ++
+        [maybe XEmpty (XElement (QN "defaults" Nothing).emitXml) e] ++
+        map (XElement (QN "credit" Nothing).emitXml) f ++
+        [XElement (QN "part-list" Nothing) (emitXml g)])
+parseScoreHeader :: P.XParse ScoreHeader
+parseScoreHeader = 
+      ScoreHeader
+        <$> P.optional (P.xchild (P.name "work") (parseWork))
+        <*> P.optional (P.xchild (P.name "movement-number") (P.xtext >>= return))
+        <*> P.optional (P.xchild (P.name "movement-title") (P.xtext >>= return))
+        <*> P.optional (P.xchild (P.name "identification") (parseIdentification))
+        <*> P.optional (P.xchild (P.name "defaults") (parseDefaults))
+        <*> P.many (P.xchild (P.name "credit") (parseCredit))
+        <*> (P.xchild (P.name "part-list") (parsePartList))
+
+-- | Smart constructor for 'ScoreHeader'
+mkScoreHeader :: PartList -> ScoreHeader
+mkScoreHeader g = ScoreHeader Nothing Nothing Nothing Nothing Nothing [] g
+
+-- | @score-part@ /(group)/
+data ScorePart = 
+      ScorePart {
+          scorePartScorePart :: CmpScorePart -- ^ /score-part/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml ScorePart where
+    emitXml (ScorePart a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "score-part" Nothing) (emitXml a)])
+parseScorePart :: P.XParse ScorePart
+parseScorePart = 
+      ScorePart
+        <$> (P.xchild (P.name "score-part") (parseCmpScorePart))
+
+-- | Smart constructor for 'ScorePart'
+mkScorePart :: CmpScorePart -> ScorePart
+mkScorePart a = ScorePart a
+
+-- | @slash@ /(group)/
+data Slash = 
+      Slash {
+          slashSlashType :: NoteTypeValue -- ^ /slash-type/ child element
+        , slashSlashDot :: [Empty] -- ^ /slash-dot/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Slash where
+    emitXml (Slash a b) =
+      XContent XEmpty
+        []
+        ([XElement (QN "slash-type" Nothing) (emitXml a)] ++
+        map (XElement (QN "slash-dot" Nothing).emitXml) b)
+parseSlash :: P.XParse Slash
+parseSlash = 
+      Slash
+        <$> (P.xchild (P.name "slash-type") (P.xtext >>= parseNoteTypeValue))
+        <*> P.many (P.xchild (P.name "slash-dot") (parseEmpty))
+
+-- | Smart constructor for 'Slash'
+mkSlash :: NoteTypeValue -> Slash
+mkSlash a = Slash a []
+
+-- | @staff@ /(group)/
+data Staff = 
+      Staff {
+          staffStaff :: PositiveInteger -- ^ /staff/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Staff where
+    emitXml (Staff a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "staff" Nothing) (emitXml a)])
+parseStaff :: P.XParse Staff
+parseStaff = 
+      Staff
+        <$> (P.xchild (P.name "staff") (P.xtext >>= parsePositiveInteger))
+
+-- | Smart constructor for 'Staff'
+mkStaff :: PositiveInteger -> Staff
+mkStaff a = Staff a
+
+-- | @traditional-key@ /(group)/
+data TraditionalKey = 
+      TraditionalKey {
+          traditionalKeyCancel :: (Maybe Cancel) -- ^ /cancel/ child element
+        , traditionalKeyFifths :: Fifths -- ^ /fifths/ child element
+        , traditionalKeyMode :: (Maybe Mode) -- ^ /mode/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml TraditionalKey where
+    emitXml (TraditionalKey a b c) =
+      XContent XEmpty
+        []
+        ([maybe XEmpty (XElement (QN "cancel" Nothing).emitXml) a] ++
+        [XElement (QN "fifths" Nothing) (emitXml b)] ++
+        [maybe XEmpty (XElement (QN "mode" Nothing).emitXml) c])
+parseTraditionalKey :: P.XParse TraditionalKey
+parseTraditionalKey = 
+      TraditionalKey
+        <$> P.optional (P.xchild (P.name "cancel") (parseCancel))
+        <*> (P.xchild (P.name "fifths") (P.xtext >>= parseFifths))
+        <*> P.optional (P.xchild (P.name "mode") (P.xtext >>= parseMode))
+
+-- | Smart constructor for 'TraditionalKey'
+mkTraditionalKey :: Fifths -> TraditionalKey
+mkTraditionalKey b = TraditionalKey Nothing b Nothing
+
+-- | @tuning@ /(group)/
+data Tuning = 
+      Tuning {
+          tuningTuningStep :: Step -- ^ /tuning-step/ child element
+        , tuningTuningAlter :: (Maybe Semitones) -- ^ /tuning-alter/ child element
+        , tuningTuningOctave :: Octave -- ^ /tuning-octave/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Tuning where
+    emitXml (Tuning a b c) =
+      XContent XEmpty
+        []
+        ([XElement (QN "tuning-step" Nothing) (emitXml a)] ++
+        [maybe XEmpty (XElement (QN "tuning-alter" Nothing).emitXml) b] ++
+        [XElement (QN "tuning-octave" Nothing) (emitXml c)])
+parseTuning :: P.XParse Tuning
+parseTuning = 
+      Tuning
+        <$> (P.xchild (P.name "tuning-step") (P.xtext >>= parseStep))
+        <*> P.optional (P.xchild (P.name "tuning-alter") (P.xtext >>= parseSemitones))
+        <*> (P.xchild (P.name "tuning-octave") (P.xtext >>= parseOctave))
+
+-- | Smart constructor for 'Tuning'
+mkTuning :: Step -> Octave -> Tuning
+mkTuning a c = Tuning a Nothing c
+
+-- | @voice@ /(group)/
+data Voice = 
+      Voice {
+          voiceVoice :: String -- ^ /voice/ child element
+       }
+    deriving (Eq,Typeable,Generic,Show)
+instance EmitXml Voice where
+    emitXml (Voice a) =
+      XContent XEmpty
+        []
+        ([XElement (QN "voice" Nothing) (emitXml a)])
+parseVoice :: P.XParse Voice
+parseVoice = 
+      Voice
+        <$> (P.xchild (P.name "voice") (P.xtext >>= return))
+
+-- | Smart constructor for 'Voice'
+mkVoice :: String -> Voice
+mkVoice a = Voice a
diff --git a/src/Fadno/Xml/Codegen.hs b/src/Fadno/Xml/Codegen.hs
new file mode 100644
--- /dev/null
+++ b/src/Fadno/Xml/Codegen.hs
@@ -0,0 +1,426 @@
+{-# LANGUAGE RecordWildCards #-}
+{-# LANGUAGE TupleSections #-}
+{-# LANGUAGE DeriveGeneric #-}
+{-# LANGUAGE FlexibleContexts #-}
+{-# LANGUAGE DeriveDataTypeable #-}
+{-# LANGUAGE TemplateHaskell #-}
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE GeneralizedNewtypeDeriving #-}
+-- | Generate code using types emitted from XSD.
+module Fadno.Xml.Codegen
+    (
+     -- * Codegen API
+     outputTypes,outputType,outputHeader
+    -- * Monad
+    ,Output
+    ,OutputState(..),names
+    ,OutputEnv(..),handle
+    ,runOut,runOut'
+    ) where
+
+import Fadno.Xml.EmitTypes
+import Fadno.Xml.ParseXsd
+import Control.Lens hiding (Choice,element,elements)
+import Control.Monad.State.Strict
+import Control.Monad.Reader
+import qualified Data.Map.Strict as M
+import Data.Char
+import System.IO
+import Data.List (intercalate)
+import Data.Maybe
+
+
+-- | Codegen state.
+data OutputState = OutputState { _names :: M.Map String Name }
+$(makeLenses ''OutputState)
+-- | Codegen reader environment.
+data OutputEnv = OutputEnv { _handle :: Handle }
+$(makeLenses ''OutputEnv)
+
+-- | Codegen monad.
+type Output a = ReaderT OutputEnv (StateT OutputState IO) a
+
+-- | Enumerate types to avoid in mangling.
+defaultNames :: M.Map String Name
+defaultNames = M.fromList $ map (\n -> (n,Name NSBuiltIn (QN n Nothing) 0))
+               ["Eq","Typeable","Generic","Ord","Bounded",
+                "Enum","Num","Real","Integral","Show",
+               "String","Double","Float","Boolean","Int"]
+
+-- | Run output monad.
+runOut :: OutputEnv -> OutputState -> Output a -> IO (a, OutputState)
+runOut e s a = runStateT (runReaderT a e) s
+
+-- | Convenience runner.
+runOut' :: Handle -> Output a -> IO (a, OutputState)
+runOut' h = runOut (OutputEnv h) (OutputState defaultNames)
+
+-- | putStr in codegen.
+outStr :: String -> Output ()
+outStr s = view handle >>= \h -> liftIO $ hPutStr h s
+
+-- | putStrLn in codegen.
+outStrLn :: String -> Output ()
+outStrLn s = view handle >>= \h -> liftIO $ hPutStrLn h s
+
+-- | indent.
+indent :: Int -> Output ()
+indent i = outStr $ replicate i ' '
+
+-- | Output all types.
+outputTypes :: EmitState -> Output ()
+outputTypes = mapM_ outputType . M.elems . _types
+
+-- | Comment header.
+header :: Name -> Maybe Documentation -> Output ()
+header (Name ns n i) doc = do
+  outStrLn ""
+  outStr $ "-- | @" ++ show n ++ "@"
+  outStrLn $ " /(" ++ drop 2 (map toLower $ show ns) ++ ")/"
+  case doc of
+    Nothing -> return ()
+    Just (Documentation d) ->
+        do
+          outStrLn "--"
+          let ls = lines d
+          if length ls < 10 -- lame "longer docs" heuristic
+          then mapM_ (outStrLn . ("-- " ++)) ls
+          else do
+            -- longer docs: head unformatted
+            outStrLn $ "-- " ++ head ls
+            -- explicit formatting for tail
+            outStrLn "--"
+            outStrLn "-- @"
+            mapM_ (outStrLn . ("-- " ++)) (tail ls)
+            outStrLn "-- @"
+  when (i > 0) $ do
+    outStrLn ""
+    outStrLn $ "-- mangled: " ++ show i
+
+
+-- | Codegen a type.
+outputType :: Type -> Output ()
+outputType (BuiltIn {}) = return ()
+
+-- NEWTYPE --
+outputType nt@(NewType {..}) = do
+  header _typeName _typeDoc
+  mn <- mangleType nt
+  mf <- mangleField _typeName "" 0
+  rt <- refType _typeType
+  outStrLn $ "newtype " ++ mn ++ " = " ++ mn ++
+               " { " ++ mf ++ " :: " ++ rt ++ " }"
+  outStrLn $ "    deriving (" ++ outputDerives _typeDerives ++ ")"
+  mapM_ (outputImpls nt) _typeImpls
+  outputEmitXml mn
+  outStrLn $ "    emitXml = emitXml . " ++ mf
+  -- PARSING
+  outStrLn $ "parse" ++ mn ++ " :: String -> P.XParse " ++ mn
+  if _typeDerives == NewTypeString
+  then outStrLn $ "parse" ++ mn ++ " = return . fromString"
+  else outStrLn $ "parse" ++ mn ++ " = P.xread \"" ++ mn ++ "\""
+
+
+-- DATA --
+outputType dt@(DataType {..}) = do
+  header _typeName _typeDoc
+  mn <- mangleType dt
+  outStrLn $ "data " ++ mn ++ " = "
+  forM_ (zip [(0 :: Int)..] _typeCtors) $ \(i,Ctor {..}) ->
+      do
+        outStr (if i > 0 then "    | " else "      ")
+        mangleCtor _typeName _ctorName >>= outStr
+        if null _ctorFields then outStrLn ""
+        else do
+          outStrLn " {"
+          forM_ (zip [(0 :: Int)..] _ctorFields) $ \(j,Field fn ft fc femit fi) ->
+            do
+              outStr (if j > 0 then "        , " else "          ")
+              rt <- refType ft
+              mf <- mangleField _typeName (_qLocal fn) fi
+              let docs = if _typeEmit == DataTypeSimple then ""
+                         else case femit of
+                           FieldAttribute -> " -- ^ /" ++ show fn ++ "/ attribute"
+                           FieldElement -> " -- ^ /" ++ show fn ++ "/ child element"
+                           FieldText -> " -- ^ text content"
+                           FieldOther -> ""
+
+              outStrLn $ mf ++ " :: " ++ card fc rt ++ docs
+          outStrLn "       }"
+  outStrLn $ "    deriving (" ++ outputDerives _typeDerives ++ ")"
+  -- EmitXml instance
+  outputEmitXml mn
+  forM_ _typeCtors $ \(Ctor {..}) -> do
+    mcn <- mangleCtor _typeName _ctorName
+    case _typeEmit of
+      DataTypeSimple ->
+          outStrLn $ "    emitXml (" ++ mcn ++ " a) = emitXml a"
+      _ -> do
+        let fas = zip fieldArgs _ctorFields
+            genEls [] = "[]"
+            genEls es = "(" ++ intercalate " ++\n        "
+                        (map (\f -> genEl (_fieldXmlEmit (snd f)) f) es) ++ ")"
+            genEl FieldElement f = genPart "XElement" f
+            genEl FieldOther (c,_) = "[emitXml " ++ c ++ "]"
+            genEl _ f = error "c'est impossible: " ++ show f
+            genParts _ [] = "[]"
+            genParts xctor ffs = "(" ++ intercalate " ++\n        " (map (genPart xctor) ffs) ++ ")"
+            genPart xctor (c,Field fn _ fc _ _) =
+                case fc of
+                  One -> "[" ++ genct xctor fn ++ " (emitXml " ++ c ++ ")]"
+                  ZeroOrOne -> "[maybe XEmpty (" ++ genct xctor fn ++ ".emitXml) " ++ c ++ "]"
+                  Many -> "map (" ++ genct xctor fn ++ ".emitXml) " ++ c
+            genct x q = x ++ " " ++ genqn q
+            genqn (QN l p) = "(QN \"" ++ l ++ "\" " ++
+                             maybe "Nothing" (\v -> "(Just \"" ++ v ++ "\")") p ++
+                             ")"
+            genreps ffs = "[" ++ intercalate "," (map (("emitXml "++).fst) ffs) ++ "]"
+            findFields fpred = filter (fpred . _fieldXmlEmit . snd) fas
+            oths = findFields (==FieldOther)
+        outStrLn $ "    emitXml (" ++ mcn ++ concatMap ((" " ++) . fst) fas  ++ ") ="
+        if length oths < length fas  -- heuristic for "passthrough" compositors
+        then do
+          indent 6
+          if TopLevel `elem` _typeImpls
+          then outStr ("XElement " ++ genqn (nName _typeName) ++ " $ XContent ")
+          else outStr "XContent "
+          case map fst $ findFields (==FieldText) of
+            [c] -> outStrLn $ "(emitXml " ++ c ++ ")"
+            [] -> outStrLn "XEmpty"
+            _ -> die $ "More than one text field: " ++ show dt
+          indent 8 >> outStrLn (genParts "XAttr" (findFields (==FieldAttribute)))
+          indent 8 >> outStrLn (genEls (findFields (`elem` [FieldElement,FieldOther])))
+
+        else
+          indent 6 >> outStrLn ("XReps " ++ genreps fas)
+  -- PARSING
+
+  if _typeEmit == DataTypeSimple
+  then do
+    outStrLn $ "parse" ++ mn ++ " :: String -> P.XParse " ++ mn
+    outStrLn $ "parse" ++ mn ++ " s = "
+  else do
+    outStrLn $ "parse" ++ mn ++ " :: P.XParse " ++ mn
+    outStrLn $ "parse" ++ mn ++ " = "
+  forM_ (zip [(0 :: Int)..] _typeCtors) $ \(j,Ctor {..}) -> do
+    mcn <- mangleCtor _typeName _ctorName
+    outStr "      "
+    when (j > 0) $ outStr "<|> "
+    if null _ctorFields
+    then outStrLn $ "return " ++ mcn
+    else outStrLn mcn
+    forM_ (zip [(0 :: Int) ..] _ctorFields) $ \(i,Field {..}) ->
+      do
+        outStr $ "        " ++ (if i == 0 then "<$> " else "<*> ")
+        ftn <- mangleType _fieldType
+        case _typeEmit of
+          DataTypeSimple -> outStrLn $ parseFun ftn ++ " s"
+          _ ->
+            do
+              let pname = "(P.name \"" ++ show _fieldName ++ "\")"
+                  parser = parseFun ftn
+                  attrParse = "(P.xattr " ++ pname ++ " >>= " ++ parser ++ ")"
+                  elParse = parseEl parser pname _fieldType
+                  -- gross heuristic to handle horrible musicxml things
+                  pmany | length _ctorFields == 1 && length _typeCtors > 1 = "P.some"
+                        | otherwise = "P.many"
+              outStrLn $ case (_fieldXmlEmit,_fieldCardinality) of
+                (FieldAttribute,ZeroOrOne) -> "P.optional " ++ attrParse
+                (FieldAttribute,_) -> attrParse
+                (FieldText,_) -> "(P.xtext >>= " ++ parser ++ ")"
+                (FieldElement,Many) -> pmany ++ " " ++ elParse
+                (FieldElement,ZeroOrOne) -> "P.optional " ++ elParse
+                (FieldElement,One) -> elParse
+                (FieldOther,ZeroOrOne) -> "P.optional (" ++ parser ++ ")"
+                (FieldOther,Many) -> "P.many (" ++ parser ++ ")"
+                (FieldOther,_) -> parser
+
+
+  outStrLn ""
+  -- smart ctors
+  unless (_typeEmit == DataTypeSimple) $
+         forM_ _typeCtors $ \(Ctor {..}) ->
+           do
+             mcn <- mangleCtor _typeName _ctorName
+             let fas = zip fieldArgs _ctorFields
+             mfs <- forM fas $ \(c,Field _ ft fc _ _) ->
+                     case fc of
+                       One -> (c,) . Just . (c,) <$> refType ft
+                       ZeroOrOne -> return ("Nothing",Nothing)
+                       Many -> return ("[]",Nothing)
+             let args = mapMaybe snd mfs
+             outStrLn $ "-- | Smart constructor for '" ++ mcn ++ "'"
+             outStrLn $ "mk" ++ mcn ++ " :: " ++ concatMap ((++ " -> ") . snd) args ++ mn
+             outStrLn $ "mk" ++ mcn ++ " " ++ concatMap ((++ " ") . fst) args ++
+                          "= " ++ mcn ++ " " ++ unwords (map fst mfs)
+  mapM_ (outputImpls dt) _typeImpls
+
+
+-- ENUM --
+outputType et@(EnumType {..}) = do
+  header _typeName _typeDoc
+  mn <- mangleType et
+  outStrLn $ "data " ++ mn ++ " = "
+  forM_ (zip [(0 :: Int)..] _typeEnumValues) $ \(i,s) ->
+      do
+        outStr (if i > 0 then "    | " else "      ")
+        mangleCtor _typeName s >>= \e -> outStrLn $ e ++ " -- ^ /" ++ s ++ "/"
+  outStrLn $ "    deriving (" ++ outputDerives _typeDerives  ++ ")"
+  mapM_ (outputImpls et) _typeImpls
+  outputEmitXml mn
+  forM_ _typeEnumValues $ \s -> do
+    cn <- mangleCtor _typeName s
+    outStrLn $ "    emitXml " ++ cn ++ " = XLit \"" ++ s ++ "\""
+  -- PARSING
+  outStrLn $ "parse" ++ mn ++ " :: String -> P.XParse " ++ mn
+  outStrLn $ "parse" ++ mn ++ " s"
+  forM_  _typeEnumValues $ \s ->
+      do
+        cn <- mangleCtor _typeName s
+        outStrLn $ "        | s == \"" ++ s ++ "\" = return $ " ++ cn
+  outStrLn $ "        | otherwise = P.xfail $ \"" ++ mn ++ ": \" ++ s"
+
+
+-- | breaking off because RecordWildCards breaks haskell
+parseEl :: String -> String -> Type -> String
+parseEl parser pname fType =
+    case firstOf typeEmit fType of
+      Just DataTypeSimple -> simpleEl
+      Nothing -> simpleEl
+      _ -> "(P.xchild " ++ pname ++ " (" ++ parser ++ "))"
+    where simpleEl = "(P.xchild " ++ pname ++ " (P.xtext >>= " ++ parser ++ "))"
+
+parseFun :: String -> String
+parseFun tn | tn == "Decimal" = rp
+            | tn == "DefString" = "return"
+            | tn == "Integer" = rp
+            | otherwise = "parse" ++ tn
+            where rp = "(P.xread \"" ++ tn ++ "\")"
+
+-- | List of usable field arguments.
+fieldArgs :: [String]
+fieldArgs = concatMap (\p -> map ((++p).pure) ['a'..'z']) ("": map pure ['1'..'9'])
+
+-- | Begin an EmitXml instance.
+outputEmitXml :: String -> Output ()
+outputEmitXml typename =
+  outStrLn $ "instance EmitXml " ++ typename ++ " where"
+
+-- | Codegen for cardinality (Maybe or List).
+card :: Cardinality -> String -> String
+card One s = s
+card ZeroOrOne s = "(Maybe " ++ s ++ ")"
+card Many s = "[" ++ s ++ "]"
+
+-- | Mangling for type names.
+mangleType :: Type -> Output String
+mangleType = m . _typeName where
+    m n@(Name _ bare _) = mangle n (firstUpper $ fixChars (_qLocal bare)) firstUpper
+
+
+-- | Run mangling rules.
+mangle :: Name -> String -> (String -> String) -> Output String
+mangle n@(Name ns _ i) tname mangledFun =
+  tryName n tname $ do
+    let pfx NSBuiltIn = "Def"
+        pfx NSComplex = "Cmp"
+        pfx NSUnion = "Sum"
+        pfx NSSimple = "Smp"
+        pfx NSElement = "El"
+        pfx NSChoice = "Chx"
+        pfx NSSequence = "Seq"
+        pfx NSGroup = "Grp"
+        tnameP = mangledFun $ pfx ns ++ tname
+    tryName n tnameP $ do
+                    let tnamei = tnameP ++ show i
+                    tryName n tnamei $
+                            die $ "type already exists for mangled name: " ++ tnamei
+
+-- | Check if name exists, if not register it.
+tryName :: Name -> String -> Output String -> Output String
+tryName n tn ifnot = do
+  fn <- M.lookup tn <$> use names
+  case fn of
+    Nothing -> do
+            names %= M.insert tn n
+            return tn
+    (Just found)
+        | found == n -> return tn
+        | otherwise -> ifnot
+
+-- | Type/Ctor naming.
+firstUpper :: String -> String
+firstUpper (s:ss) = toUpper s:ss
+firstUpper [] = []
+-- | Field naming.
+firstLower :: String -> String
+firstLower (s:ss) = toLower s:ss
+firstLower [] = []
+
+-- | Mangling for fields.
+mangleField :: Name -> String -> Int -> Output String
+mangleField nm n i = mangle nm
+                     (firstLower $ fixChars (_qLocal (nName nm) ++ firstUpper n ++ if i > 0 then show i else ""))
+                     firstLower
+
+-- | Mangling for ctors.
+mangleCtor :: Name -> String -> Output String
+mangleCtor nm n = mangle nm (firstUpper $ fixChars (_qLocal (nName nm) ++ firstUpper n)) firstUpper
+
+-- | Substitute valid Haskell chars.
+fixChars :: String -> String
+fixChars = reverse . snd . foldl fc (True,"")
+    where fc (uc,s) c | c `elem` ("- :" :: String) = (True,s)
+                      | otherwise = (False,(if uc then toUpper c else c):s)
+
+-- | Get referred type name, handling builtins.
+refType :: Type -> Output String
+refType t@(BuiltIn {}) = return $ drop 2 $ show (_coreType t)
+refType t = mangleType t
+
+-- | Output derive types.
+outputDerives :: DerivesFamily -> String
+outputDerives NewTypeIntegral = allDerives ++ "Ord,Bounded,Enum,Num,Real,Integral"
+outputDerives NewTypeNum = allDerives ++ "Ord,Num,Real,Fractional,RealFrac"
+outputDerives NewTypeString = allDerives ++ "Ord,IsString"
+outputDerives OtherDerives = allDerives ++ "Show"
+outputDerives DataEnum = allDerives ++ "Show,Ord,Enum,Bounded"
+
+-- | Common derived types.
+allDerives :: String
+allDerives = "Eq,Typeable,Generic,"
+
+-- | Handle impls.
+-- | TODO patterns, bounds.
+outputImpls :: Type -> Impl -> Output ()
+outputImpls t NewTypeShow = do
+  tn <- refType t
+  outStrLn $ "instance Show " ++ tn ++ " where show (" ++ tn ++ " a) = show a"
+  outStrLn $ "instance Read " ++ tn ++ " where readsPrec i = map (A.first " ++ tn ++ ") . readsPrec i"
+outputImpls _ _ = return ()
+
+-- | Output pragmas, module, imports.
+outputHeader :: String -> Output ()
+outputHeader moduleName = mapM_ outStrLn
+    [ "{-# LANGUAGE TupleSections #-}"
+    , "{-# LANGUAGE DeriveGeneric #-}"
+    , "{-# LANGUAGE FlexibleContexts #-}"
+    , "{-# LANGUAGE DeriveDataTypeable #-}"
+    , "{-# LANGUAGE TemplateHaskell #-}"
+    , "{-# LANGUAGE OverloadedStrings #-}"
+    , "{-# LANGUAGE GeneralizedNewtypeDeriving #-}"
+    , "{-# LANGUAGE DeriveDataTypeable #-}"
+    , "{-# LANGUAGE MultiParamTypeClasses #-}"
+    , ""
+    , "module " ++ moduleName ++ " where"
+    , ""
+    , "import GHC.Generics"
+    , "import Data.Data"
+    , "import Data.Decimal"
+    , "import Data.String"
+    , "import Fadno.Xml.EmitXml"
+    , "import qualified Fadno.Xml.XParse as P"
+    , "import qualified Control.Applicative as P"
+    , "import Control.Applicative ((<|>))"
+    , "import Control.Arrow as A"
+    ]
diff --git a/src/Fadno/Xml/EmitTypes.hs b/src/Fadno/Xml/EmitTypes.hs
new file mode 100644
--- /dev/null
+++ b/src/Fadno/Xml/EmitTypes.hs
@@ -0,0 +1,493 @@
+{-# LANGUAGE TupleSections #-}
+{-# LANGUAGE DeriveGeneric #-}
+{-# LANGUAGE FlexibleContexts #-}
+{-# LANGUAGE DeriveDataTypeable #-}
+{-# LANGUAGE TemplateHaskell #-}
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE GeneralizedNewtypeDeriving #-}
+-- | Consume a 'Schema' and emit types intended for code generation.
+module Fadno.Xml.EmitTypes
+    (
+     -- * XSD Schema to types
+     emitSchema
+     -- * Emit various productions
+    ,emitElement,emitSimpleType,emitComplexType,emitCompositor
+    ,emitGroup,emitChoice,emitSequence,emitParticle,emitAttrFields
+     -- * Emit monad
+    ,Emit,Env(..),schema,EmitState(..),types,stack,runEmit,die
+    -- * Types
+    ,Name(..),Namespace(..),Cardinality(..)
+    ,Field(..),fieldName,fieldType,fieldCardinality,fieldXmlEmit,fieldIdx,FieldEmit(..)
+    ,Ctor(..),ctorName,ctorFields
+    ,Type(..),typeName,typeType,typeDerives,typeImpls,typeEmit,typeCtors,typeEnumValues,coreType
+    ,DerivesFamily(..),DataTypeEmit(..),CoreType(..),Impl(..)
+    ) where
+
+import Fadno.Xml.ParseXsd
+import Data.Monoid
+import Control.Lens hiding (Choice,element,elements,anon)
+
+import Control.Monad.State.Strict
+import Control.Monad.Reader
+import Data.Maybe
+import Data.Data
+import Control.Exception hiding (handle)
+import qualified Data.Map.Strict as M
+
+
+-- | Field cardinality
+data Cardinality =
+    One |
+    ZeroOrOne |
+    Many
+    deriving (Eq,Show,Data,Typeable,Ord,Enum,Bounded)
+
+-- | Namespaces for various productions.
+data Namespace =
+    NSElement |
+    NSSimple |
+    NSUnion |
+    NSComplex |
+    NSBuiltIn |
+    NSChoice |
+    NSSequence |
+    NSGroup
+    deriving (Eq,Show,Data,Typeable,Ord,Enum,Bounded)
+
+-- | Type name.
+data Name = Name {
+      nNamespace :: Namespace
+    , nName :: QN
+    , nIdx :: Int }
+            deriving (Eq,Show,Data,Typeable,Ord)
+
+-- | Field xml emit cue.
+data FieldEmit =
+    FieldAttribute |
+    FieldElement |
+    FieldText |
+    FieldOther
+    deriving (Eq,Show,Data,Typeable,Ord)
+
+-- | Type field.
+data Field = Field {
+      _fieldName :: QN
+    , _fieldType :: Type
+    , _fieldCardinality :: Cardinality
+    , _fieldXmlEmit :: FieldEmit
+    , _fieldIdx :: Int
+    } deriving (Eq,Data,Typeable,Ord)
+
+instance Show Field where
+    show (Field n t c x i) =
+        "Field {_fieldName = " ++ show n ++
+                    ",_fieldType = {_typeName = " ++ show (_typeName t) ++
+                    "},_fieldCardinality = " ++ show c ++
+                    ",_fieldXmlEmit = " ++ show x ++
+                    ",_fieldIdx = " ++ show i ++
+                    "}"
+
+-- | Datatype constructor.
+data Ctor = Ctor {
+      _ctorName :: String
+    , _ctorFields :: [Field]
+    } deriving (Eq,Show,Data,Typeable,Ord)
+
+-- | Derive type "families".
+data DerivesFamily =
+    NewTypeString |
+    NewTypeIntegral |
+    NewTypeNum |
+    DataEnum |
+    OtherDerives
+    deriving (Eq,Show,Data,Typeable,Ord,Enum,Bounded)
+
+-- | "Impl"s of classes, but also grab-bag of type deets.
+data Impl =
+    -- | Specifies min and max values
+    Bounds (Maybe (Bound String), Maybe (Bound String)) |
+    -- | Specifies string pattern
+    Pattern String |
+    -- | Implement 'Show' for newtype
+    NewTypeShow |
+    -- | Top-level element, so emit element name as well as contents.
+    -- Elements normally inherit the name from the referencing production.
+    TopLevel
+            deriving (Eq,Show,Data,Typeable,Ord)
+
+-- | newtype base types. Name after CT should be Haskell base type.
+data CoreType =
+    CTString |
+    CTDecimal |
+    CTFloat |
+    CTDouble |
+    CTInt |
+    CTBool
+    deriving (Eq,Show,Data,Typeable,Ord,Enum,Bounded)
+
+-- | Data type xml emit cue.
+data DataTypeEmit =
+    DataTypeComplex |
+    DataTypeSimple |
+    DataTypeCompositor
+    deriving (Eq,Show,Data,Typeable,Ord)
+
+-- | Emitted type.
+data Type =
+    NewType {
+      _typeName :: Name
+    , _typeType :: Type
+    , _typeDerives :: DerivesFamily
+    , _typeImpls :: [Impl]
+    , _typeDoc :: Maybe Documentation
+    } |
+    DataType {
+      _typeName :: Name
+    , _typeCtors :: [Ctor]
+    , _typeDerives :: DerivesFamily
+    , _typeImpls :: [Impl]
+    , _typeEmit :: DataTypeEmit
+    , _typeDoc :: Maybe Documentation
+    } |
+    EnumType {
+      _typeName :: Name
+    , _typeEnumValues :: [String]
+    , _typeDerives :: DerivesFamily
+    , _typeImpls :: [Impl]
+    , _typeDoc :: Maybe Documentation
+    } |
+    BuiltIn {
+      _typeName :: Name
+    , _coreType :: CoreType
+    , _typeDerives :: DerivesFamily
+    , _typeImpls :: [Impl]
+    } deriving (Eq,Show,Data,Typeable,Ord)
+
+$(makeLenses ''Type)
+$(makeLenses ''Ctor)
+$(makeLenses ''Field)
+
+
+-- | Reader environment.
+data Env = Env {
+      _schema :: Schema
+}
+$(makeLenses ''Env)
+
+-- | State data.
+data EmitState = EmitState { _types :: M.Map Name Type, _stack :: [Name] }
+$(makeLenses ''EmitState)
+instance Monoid EmitState where
+    mempty = EmitState mempty mempty
+    (EmitState a b) `mappend` (EmitState c d) = EmitState (a<>c) (b<>d)
+
+-- | Emit monad.
+type Emit a = ReaderT Env (StateT EmitState IO) a
+
+-- | Run emit monad.
+runEmit :: Env -> EmitState -> Emit a -> IO (a, EmitState)
+runEmit env st act = runStateT (runReaderT act env) st
+
+-- | Emit schema types. Starts with element productions
+-- and emits all dependent types.
+emitSchema :: Schema -> Emit ()
+emitSchema s = do
+  els <- M.keys <$> mapM emitElement (_elements s)
+  types %= M.mapWithKey
+            (\k v -> if nName k `elem` els
+                     then over typeImpls (TopLevel:) v
+                     else v)
+
+-- | String builtin.
+builtInString :: Type
+builtInString = mkBuiltIn "string" CTString NewTypeString
+
+-- | All built-in types.
+builtIns :: M.Map QN Type
+builtIns = foldr (\b -> M.insert (nName (_typeName b)) b) mempty
+           [builtInInteger,builtInDecimal,builtInDouble,
+            builtInFloat,builtInBoolean,builtInString]
+    where
+      builtInInteger = mkBuiltIn "integer" CTInt NewTypeIntegral
+      builtInDecimal = mkBuiltIn "decimal" CTDecimal NewTypeNum
+      builtInFloat = mkBuiltIn "float" CTFloat NewTypeNum
+      builtInDouble = mkBuiltIn "double" CTDouble NewTypeNum
+      builtInBoolean = mkBuiltIn "boolean" CTBool OtherDerives
+
+-- | Smart ctor for built-in types.
+mkBuiltIn :: String -> CoreType -> DerivesFamily -> Type
+mkBuiltIn n ct df = BuiltIn (Name NSBuiltIn (QN n (Just "xs")) 0) ct df [NewTypeShow]
+
+
+-- | Emit type for element content; element name production
+-- captured in containing field.
+emitElement :: Element -> Emit Type
+emitElement (ElementType _ t _ doc) = do
+  rt <- resolvedRef t
+  case rt of
+    Left ct -> emitComplexType Nothing ct
+    Right st -> emitSimpleType st
+emitElement (ElementComplex n c _ doc) = emitComplexType (Just n) c
+emitElement (ElementRef {}) = die "ElementRef unsupported"
+emitElement (ElementSimple {}) = die "ElementSimple unsupported"
+
+-- | Error out in IO.
+die :: MonadIO m => String -> m a
+die = liftIO . throwIO . userError
+
+
+-- | Resolve a ref and obtain the resolved value.
+resolvedRef :: (Resolvable (Ref a)) => Ref a -> Emit a
+resolvedRef r = do
+  s <- view schema
+  case firstOf refvalue (resolve s r) of
+    Just a -> return a
+    Nothing -> die $ "resolvedRef: resolve failed on " ++ show r
+
+
+-- | Handle simpleType production.
+emitSimpleType :: SimpleType -> Emit Type
+emitSimpleType t =
+    case view simpleTypeName t of
+      Nothing -> use stack >>= \s -> die $ "emitSimpleType: anon type: " ++ show t ++
+                 ", stack: " ++ show s
+      Just stn -> do
+          bt <- tryBuiltIn t
+          maybe (checkDefinedType NSSimple stn $ doSimpleType t) return bt
+
+doSimpleType :: SimpleType -> Name -> Emit Type
+doSimpleType (SimpleTypeRestrict _ (SimpleRestriction base enumz mins maxs patt) doc) n = do
+  bt <- resolvedRef base
+  if not (null enumz)
+  then emitEnum bt n enumz doc
+  else do
+    btt <- emitSimpleType bt
+    return $ NewType n btt (_typeDerives btt)
+           ([Bounds (mins,maxs) | isJust mins || isJust maxs] ++
+            maybe [] (return.Pattern) patt ++
+            _typeImpls btt) doc
+doSimpleType (SimpleTypeUnion _ (Union refs sts) doc) n = do
+  rts <- mapM resolvedRef refs
+  rtts <- mapM emitSimpleType rts
+  let doAnon t = checkUniqueType NSUnion Nothing (doSimpleType t)
+  atns <- mapM doAnon sts
+  let doCtor i t =
+          Ctor (_qLocal $ nName (_typeName t))
+                   [Field (QN (show i) Nothing) t One FieldAttribute 0]
+  return $ fixFields $
+         DataType n (zipWith doCtor [(1 :: Int) ..] $ rtts ++ atns)
+                  OtherDerives [] DataTypeSimple doc
+
+-- | Check if type is built-in.
+tryBuiltIn :: SimpleType -> Emit (Maybe Type)
+tryBuiltIn t =
+    case view simpleTypeName t of
+      Nothing -> return Nothing
+      Just tn ->
+          case M.lookup tn builtIns of
+            Just bt -> return (Just bt)
+            Nothing ->
+                case firstOf (simpleTypeRestriction.simpleRestrictBase.unresolved) t of
+                  Nothing -> return Nothing
+                  Just bt | bt == anySimpleTypeName -> return (Just builtInString)
+                          | otherwise -> return Nothing
+
+
+
+
+emitEnum :: SimpleType -> Name -> [String] -> Maybe Documentation -> Emit Type
+emitEnum _base n vals doc = return $ EnumType n vals DataEnum [] doc
+
+
+-- | Complex type. 'anon' arg indicates element-defined complex type, therefore unique;
+-- otherwise defined type.
+emitComplexType :: Maybe QN -> ComplexType -> Emit Type
+emitComplexType anon@(Just _) t =
+    checkUniqueType NSComplex anon $ doComplexType t
+emitComplexType Nothing t = do
+  n <- maybe (die $ "emitComplexType: no complex name: " ++ show t) return $
+       view complexTypeName t
+  checkDefinedType NSComplex n $ doComplexType t
+
+
+doComplexType :: ComplexType -> Name -> Emit Type
+doComplexType (ComplexTypeSimple _ (SimpleContentExtension scb atts) doc) mn = do
+  rt <- resolvedRef scb >>= emitSimpleType
+  ats <- emitAttrFields atts
+  return $ fixFields $ DataType mn
+             [Ctor "" (Field (getRefType scb) rt One FieldText 0:ats)]
+             OtherDerives [] DataTypeComplex doc
+doComplexType (ComplexTypeCompositor _ comp atts doc) mn = do
+  ats <- emitAttrFields atts
+  c <- maybe (return []) (emitCompositor [nName mn]) comp
+  return $ fixFields $
+         DataType mn [Ctor "" (ats ++ c)] OtherDerives [] DataTypeComplex doc
+doComplexType (ComplexTypeComplex _ (ComplexContentExtension ccb atts comp) doc) mn = do
+  ct <- resolvedRef ccb >>= emitComplexType (Just $ nName mn)
+  ats <- emitAttrFields atts
+  c <- maybe (return []) (emitCompositor [nName mn]) comp
+  -- TODO using FieldOther for base content, should be ok?
+  return $ fixFields $ DataType mn
+             [Ctor "" (Field (getRefType ccb) ct One FieldOther 0:(ats ++ c))]
+             OtherDerives [] DataTypeComplex doc
+
+-- | Obtain string name of 'Ref'.
+getRefType :: Ref t -> QN
+getRefType (Unresolved n) = n
+getRefType (Resolved n _) = n
+getRefType Final = error "Attempt to resolve ref on final"
+
+-- | Emit compositor field.
+emitCompositor :: [QN] -> Compositor -> Emit [Field]
+emitCompositor ns (CompositorGroup g) = emitGroup ns g
+emitCompositor ns (CompositorChoice c) = emitChoice ns c Nothing
+emitCompositor ns (CompositorSequence s) = emitSequence ns Nothing s Nothing
+
+-- | Build up name stack, used in compositor/particle field emittance.
+appendNames :: [QN] -> Maybe QN -> [QN]
+appendNames ss = maybe ss (:ss)
+
+-- | Emit group. Referenced groups make types, others pass through.
+emitGroup :: [QN] -> Group -> Emit [Field]
+emitGroup ns (GroupRef r o) = do
+    g <- resolvedRef r
+    t <- checkDefinedType NSGroup (getRefType r) $ \tn ->
+         do
+           fs <- emitGroup ns g
+           return $ DataType tn [Ctor "" fs]
+                  OtherDerives [] DataTypeComplex Nothing
+    return $ forOccurs o $ Field (getRefType r) t One FieldOther 0
+emitGroup ns (GroupChoice n o c doc) =
+    concatMap (forOccurs o) <$> emitChoice (appendNames ns n) c doc
+emitGroup ns (GroupSequence n o s doc) =
+    concatMap (forOccurs o) <$> emitSequence (appendNames ns n) (Just o) s doc
+
+-- | Choice production.
+emitChoice :: [QN] -> Choice -> Maybe Documentation -> Emit [Field]
+emitChoice ns (Choice o ps) doc = do
+  fss <- mapM (emitParticle ns) ps
+  t <- checkUniqueType NSChoice (Just $ head ns) $ \mn ->
+       do
+         let cctor fs = Ctor (_qLocal (chooseName fs)) fs
+             chooseName [f] = _fieldName f
+             chooseName fs = _fieldName (head fs) -- ++ show (length fs)
+         return $ fixFields $
+                DataType mn (map cctor fss) OtherDerives [] DataTypeCompositor doc
+  return $ forOccurs o (Field (head ns) t One FieldOther 0)
+
+-- | Guarantee unique constructor fields for a type.
+fixFields :: Type -> Type
+fixFields = over typeCtors (\cs -> evalState (mapM fixC cs) mempty)
+    where fixC :: Ctor -> State (M.Map QN Int) Ctor
+          fixC c@(Ctor _ fs) = do
+            fs' <- mapM fixF fs
+            return $ set ctorFields fs' c
+          fixF :: Field -> State (M.Map QN Int) Field
+          fixF f@(Field fn _ _ _ _) = do
+            seen <- M.lookup fn <$> get
+            modify (M.insertWith (+) fn 1)
+            return $ maybe f (\i -> set fieldIdx i f) seen
+
+
+-- | Sequence production.
+emitSequence :: [QN] -> Maybe Occurs -> Sequence -> Maybe Documentation -> Emit [Field]
+emitSequence ns parentO (Sequence o ps) doc = do
+  fs <- concat <$> mapM (emitParticle ns) ps
+  -- don't emit new type for 'One' cardinality
+  case (occursToCardinality o,fmap occursToCardinality parentO) of
+    (One,Nothing) -> return fs
+    (One,Just One) -> return fs
+    _ -> do
+      t <- checkUniqueType NSSequence (Just $ head ns) $ \mn ->
+           return $ fixFields $
+                  DataType mn [Ctor "" fs] OtherDerives [] DataTypeCompositor doc
+      return $ forOccurs o (Field (head ns) t One FieldOther 0)
+
+-- | Particle field production.
+-- Element fields emit containing element.
+emitParticle :: [QN] -> Particle -> Emit [Field]
+emitParticle _ (PartElement e) = do
+  et <- emitElement e
+  fn <- maybe (die "emitParticle: emitted element must have name") return $
+        firstOf elementName e
+  let o = fromMaybe (Occurs Nothing Nothing) $ firstOf elementOccurs e
+  return $ forOccurs o $ Field fn et One FieldElement 0
+emitParticle ns (PartGroup g) = emitGroup ns g
+emitParticle ns (PartChoice c) = emitChoice ns c Nothing
+emitParticle ns (PartSequence s) = emitSequence ns Nothing s Nothing
+
+
+-- | Modify a field cardinality per occurs.
+-- TODO: musicxml uses max occurs only for >1 or unbounded, but could be 1 ...
+-- TODO use occursToCardinality
+forOccurs :: Occurs -> Field -> [Field]
+forOccurs (Occurs Nothing Nothing) f = [f]
+forOccurs (Occurs (Just "0") Nothing) f = [set fieldCardinality ZeroOrOne f]
+forOccurs (Occurs _ _) f = [set fieldCardinality Many f]
+
+-- | Imprecise mapping of occurs-* to cardinality.
+occursToCardinality :: Occurs -> Cardinality
+occursToCardinality (Occurs Nothing Nothing) = One
+occursToCardinality (Occurs Nothing (Just "1")) = One
+occursToCardinality (Occurs (Just "0") Nothing) = ZeroOrOne
+occursToCardinality (Occurs (Just "1") Nothing) = One
+occursToCardinality (Occurs (Just "1") (Just "1")) = One
+occursToCardinality (Occurs _ _) = Many
+
+
+-- | Handle attribute and attribute group productions as fields.
+emitAttrFields :: Attributes -> Emit [Field]
+emitAttrFields  = doAttrs
+    where doAttrs (Attributes as ags) =
+              (++) <$> (catMaybes <$> mapM resolveAttr as) <*>
+              (concat <$> mapM resolveAttrGroup ags)
+          forUse Prohibited _ = Nothing
+          forUse Optional a = Just $ set fieldCardinality ZeroOrOne a
+          forUse Required a = Just $ set fieldCardinality One a
+          resolveAttr (AttributeRef r u _) = do
+              a <- resolvedRef r
+              maybe Nothing (forUse u) <$> resolveAttr a
+          resolveAttr (AttributeSimpleType n t) = do
+              a <- checkDefinedType NSSimple n (doSimpleType t) -- TODO why not just doSimpleType, or emit??
+              return $ Just $ Field n a One FieldAttribute 0
+          resolveAttr (AttributeType n r u _) =
+              resolvedRef r >>= emitSimpleType >>= \t ->
+                  return $ forUse u $ Field n t One FieldAttribute 0
+          resolveAttrGroup (AttributeGroup _ as doc) = doAttrs as
+          resolveAttrGroup (AttributeGroupRef r) = resolvedRef r >>= resolveAttrGroup
+
+-- | register a unique type, where namespace collisions will
+-- | increment 'nIdx' on the namespace.
+checkUniqueType :: Namespace -> Maybe QN -> (Name -> Emit Type) -> Emit Type
+checkUniqueType ns mtn act = do
+  n <- case mtn of
+          Just t -> return t
+          Nothing -> fmap (take 1) (use stack) >>= \h ->
+                     case h of [Name _ a _] -> return a
+                               _ -> die $ "checkType: empty stack on anon type: " ++ show ns
+  let find i = do
+        let cand = Name ns n i
+        mt <- M.lookup cand <$> use types
+        maybe (return cand) (\_ -> find (succ i)) mt
+  mn <- find 0
+  buildType mn act
+
+
+-- | register or lookup a pre-defined type; the 'Namespace' argument
+-- | should uniquely idenfify.
+checkDefinedType :: Namespace -> QN -> (Name -> Emit Type) -> Emit Type
+checkDefinedType ns tn act = do
+  let mn = Name ns tn 0
+  ts <- M.lookup mn <$> use types
+  case ts of
+    Just t -> return t
+    Nothing -> buildType mn act
+
+-- | Update state for new type.
+buildType :: Name -> (Name -> Emit Type) -> Emit Type
+buildType mn act = do
+  stack %= (mn:)
+  nt <- act mn
+  stack %= tail
+  types %= M.insert mn nt
+  return nt
diff --git a/src/Fadno/Xml/EmitXml.hs b/src/Fadno/Xml/EmitXml.hs
new file mode 100644
--- /dev/null
+++ b/src/Fadno/Xml/EmitXml.hs
@@ -0,0 +1,129 @@
+{-# LANGUAGE MultiParamTypeClasses #-}
+{-# LANGUAGE GADTs #-}
+{-# LANGUAGE FlexibleInstances #-}
+{-# LANGUAGE ScopedTypeVariables #-}
+{-# LANGUAGE StandaloneDeriving #-}
+-- | Emit an xml-like AST with renderers to String and 'Element'.
+-- Intended for use with generated code.
+module Fadno.Xml.EmitXml
+    (
+     -- * Rendering functions
+     renderString
+    ,renderElement
+    ,renderFile
+     -- * API types
+    ,EmitXml (..)
+    ,XmlRep (..)
+    ,QN (..)
+    ) where
+
+import Data.Decimal
+import Text.XML.Light
+import Data.Maybe
+
+-- | QName type.
+data QN = QN { qLocal :: String, qPrefix :: Maybe String }
+instance Show QN where
+    show (QN l Nothing) = l
+    show (QN l (Just p)) = p ++ ':':l
+
+
+
+-- | XML AST.
+data XmlRep where
+    XEmpty :: XmlRep
+    XLit :: String -> XmlRep
+    XShow :: Show a => a -> XmlRep
+    XElement :: QN -> XmlRep -> XmlRep
+    XAttr :: QN -> XmlRep -> XmlRep
+    XText :: XmlRep -> XmlRep
+    XContent :: { xtext :: XmlRep,
+                  xattrs :: [XmlRep],
+                  xels :: [XmlRep] } -> XmlRep
+    XReps :: [XmlRep] -> XmlRep
+
+deriving instance Show XmlRep
+
+-- | Emit AST.
+class EmitXml a where
+    emitXml :: a -> XmlRep
+
+
+instance EmitXml a => EmitXml (Maybe a) where
+    emitXml Nothing = XEmpty
+    emitXml (Just a) = emitXml a
+
+instance {-# OVERLAPPING #-} EmitXml String where
+    emitXml = XLit
+
+instance {-# OVERLAPPABLE #-} EmitXml a => EmitXml [a] where
+    emitXml = XReps . map emitXml
+
+instance EmitXml Int where emitXml = XShow
+instance EmitXml Decimal where emitXml = XShow
+instance EmitXml Float where emitXml = XShow
+instance EmitXml Double where emitXml = XShow
+instance EmitXml Bool where emitXml = XShow
+
+
+-- | render AST to String.
+renderString :: XmlRep -> String
+renderString (XElement name rep) =
+    "<" ++ show name ++ attrs rep ++ ">" ++ text rep ++ els rep ++ "</" ++ show name ++ ">"
+    where
+      attrs (XContent _ as _) = concatMap attr as
+      attrs (XReps rs) = concatMap attrs rs
+      attrs _ = ""
+      attr (XAttr n r) = " " ++ show n ++ "=\"" ++ renderString r ++ "\""
+      attr XEmpty = ""
+      attr r = error $ "renderString.attr: invalid production: " ++ show r
+      text (XContent t _ _) = renderString t
+      text (XReps rs) = concatMap text rs
+      text XEmpty = ""
+      text r = renderString r
+      els (XContent _ _ es) = concatMap renderString es
+      els (XReps rs) = concatMap els rs
+      els XEmpty = ""
+      els _ = ""
+renderString (XReps rs) = concatMap renderString rs
+renderString XEmpty = ""
+renderString (XLit s) = s
+renderString (XShow a) = show a
+renderString (XContent XEmpty [] els) = concatMap renderString els
+renderString r = error $ "renderString: invalid production: " ++ show r
+
+-- | render AST to Element.
+renderElement :: XmlRep -> Element
+renderElement (XElement en rep) =
+    Element (qn en)  (attrs rep) (text rep ++ els rep) Nothing
+    where
+      qn (QN l p) = QName l Nothing p
+      attrs (XContent _ as _) = concatMap attr as
+      attrs (XReps rs) = concatMap attrs rs
+      attrs _ = []
+      attr (XAttr n r) = [Attr (qn n) (fromMaybe "" (str r))]
+      attr XEmpty = []
+      attr r = error $ "renderElement.attr: invalid production: " ++ show r
+      textmay = maybe [] (\s -> [Text (CData CDataRaw s Nothing)]) . str
+      text (XContent t _ _) = textmay t
+      text (XReps r) = concatMap text r
+      text XEmpty = []
+      text r = textmay r
+      els (XContent _ _ es) = concatMap els es
+      els e@(XElement {}) = [Elem $ renderElement e]
+      els (XReps rs) = concatMap els rs
+      els XEmpty = []
+      els _ = []
+      str (XReps rs) = case catMaybes (map str rs) of
+                         [] -> Nothing
+                         ss -> Just $ concat ss
+      str XEmpty = Nothing
+      str (XLit s) = Just s
+      str (XShow a) = Just (show a)
+      str (XContent XEmpty [] es) = str (XReps es)
+      str r = error $ "renderElement.str: invalid production: " ++ show r
+renderElement r = error $ "renderElement: invalid production: " ++ show r
+
+
+renderFile :: EmitXml a => FilePath -> a -> IO ()
+renderFile fp = writeFile fp . ppTopElement . renderElement . emitXml
diff --git a/src/Fadno/Xml/ParseXsd.hs b/src/Fadno/Xml/ParseXsd.hs
new file mode 100644
--- /dev/null
+++ b/src/Fadno/Xml/ParseXsd.hs
@@ -0,0 +1,665 @@
+{-# LANGUAGE RankNTypes #-}
+{-# LANGUAGE DeriveDataTypeable #-}
+{-# LANGUAGE TemplateHaskell #-}
+{-# LANGUAGE DeriveFunctor #-}
+{-# LANGUAGE ConstraintKinds #-}
+{-# LANGUAGE FlexibleContexts #-}
+{-# LANGUAGE ScopedTypeVariables #-}
+{-# LANGUAGE FlexibleInstances #-}
+
+-- | Parse an XSD into types with the ability to resolve references.
+module Fadno.Xml.ParseXsd
+    (
+     -- * Parsers and utilities
+    parseFile, loadXsdSchema, schemaParser, namespaceSchema
+    ,qnParser, attrParser, parsec, qn, anySimpleTypeName
+     -- * Type References
+    ,Resolvable (..)
+    ,refResolve
+     -- * Schema, QNs, Refs
+    ,Ref (..),unresolved,resolved,refvalue
+    ,Schema (..),simpleTypes,complexTypes,groups,attributeGroups,elements,attributes
+    ,QN (..),qLocal,qPrefix
+    -- * Productions
+    ,SimpleType(..),simpleTypeName,simpleTypeRestriction,simpleTypeUnion,simpleTypeDoc
+    ,Bound(..)
+    ,SimpleRestriction(..),simpleRestrictBase,simpleRestrictEnums,simpleRestrictMin,simpleRestrictMax,simpleRestrictPattern
+    ,Union(..),unionMemberTypes,unionSimpleTypes
+    ,Attribute(..),attrName,attrType,attrUse,attrDefault,attrRef,attrSimpleType
+    ,Use(..)
+    ,AttributeGroup(..),attrGroupName,attrGroupAttributes,attrGroupRef,attrGroupDoc
+    ,Attributes(..),attrsAttributes,attrsAttributeGroups
+    ,Occurs(..),occursMin,occursMax
+    ,Element(..),elementName,elementType,elementOccurs,elementSimple,elementComplex,elementRef,elementDoc
+    ,ComplexType(..),complexTypeName,complexSimpleContent,complexComplexContent,complexCompositor,complexAttributes,complexTypeDoc
+    ,SimpleContent(..),simpleContentBase,simpleContentAttributes
+    ,ComplexContent(..),complexContentBase,complexContentAttributes,complexContentCompositor
+    ,Compositor(..),compGroup,compChoice,compSequence
+    ,Group(..),groupName,groupOccurs,groupChoice,groupSequence,groupRef,groupDoc
+    ,Particle(..),partElement,partGroup,partChoice,partSequence
+    ,Choice(..),choiceOccurs,choiceParticles
+    ,Sequence(..),sequenceOccurs,sequenceParticles
+    ,Documentation(..)
+    ) where
+
+import Control.Monad.State.Strict hiding (sequence)
+import Control.Monad.Except hiding (sequence)
+import Data.Either
+import Control.Applicative
+import Prelude hiding (sequence)
+import Fadno.Xml.XParser
+import Control.Lens hiding (Choice,element,elements)
+import Data.Data.Lens
+import Data.Data
+import qualified Text.Parsec as P
+import Data.Monoid
+import Control.Exception
+import qualified Data.Map.Strict as M
+import Data.Map.Strict (Map)
+import Data.Maybe
+
+
+-- | Model an outward XSD reference.
+data Ref a =
+    -- | Just type name.
+    Unresolved { _unresolved :: !QN } |
+    -- | Type name and resolved value.
+    Resolved { _resolved :: !QN,
+               _refvalue ::  !a } |
+    -- | Reserved for built-in types (string, etc)
+    Final
+    deriving (Data,Typeable,Eq)
+
+instance Show (Ref a) where
+    show (Unresolved a) = "Unresolved " ++ show a
+    show (Resolved n _) = "Resolved " ++ show n -- avoid circular stuff
+    show Final = "Final"
+
+-- | QName type.
+data QN = QN { _qLocal :: String, _qPrefix :: Maybe String }
+        deriving (Data,Typeable,Eq,Ord)
+instance Show QN
+    where show (QN l Nothing) = l
+          show (QN l (Just p)) = p ++ ':':l
+
+newtype Documentation = Documentation String
+    deriving (Eq,Ord,Data,Typeable)
+instance Show Documentation where show (Documentation a) = show a
+
+-- | XSD simpleType production.
+data SimpleType =
+    SimpleTypeRestrict {
+      _simpleTypeName :: !(Maybe QN),
+      _simpleTypeRestriction :: !SimpleRestriction,
+      _simpleTypeDoc :: Maybe Documentation } |
+    SimpleTypeUnion {
+      _simpleTypeName :: !(Maybe QN),
+      _simpleTypeUnion :: !Union,
+      _simpleTypeDoc :: Maybe Documentation }
+    deriving (Data,Typeable,Eq,Show)
+
+-- | Model min/max restrictions.
+data Bound a = Inclusive a | Exclusive a deriving (Data,Typeable,Eq,Show,Functor,Ord)
+
+-- | simple type restriction production.
+data SimpleRestriction =
+    SimpleRestriction {
+      _simpleRestrictBase :: !(Ref SimpleType)
+    , _simpleRestrictEnums :: ![String]
+    , _simpleRestrictMin :: !(Maybe (Bound String))
+    , _simpleRestrictMax :: !(Maybe (Bound String))
+    , _simpleRestrictPattern :: !(Maybe String) }
+    deriving (Data,Typeable,Eq,Show)
+
+
+-- | Simple type union production.
+data Union =
+    Union {
+      _unionMemberTypes :: ![Ref SimpleType]
+    , _unionSimpleTypes :: ![SimpleType] }
+    deriving (Data,Typeable,Eq,Show)
+
+-- | XSD attribute production.
+data Attribute =
+    AttributeType {
+      _attrName :: !QN,
+      _attrType :: !(Ref SimpleType),
+      _attrUse :: !Use,
+      _attrDefault :: !(Maybe String) } |
+    AttributeRef {
+      _attrRef :: !(Ref Attribute),
+      _attrUse :: !Use,
+      _attrDefault :: !(Maybe String) } |
+    AttributeSimpleType {
+      _attrName :: !QN,
+      _attrSimpleType :: SimpleType
+    }
+    deriving (Data,Typeable,Eq,Show)
+
+-- | XSD "use" values.
+data Use = Required | Optional | Prohibited deriving (Data,Typeable,Eq,Show)
+
+-- | XSD attribute-group production.
+data AttributeGroup =
+    AttributeGroup {
+      _attrGroupName :: !QN
+    , _attrGroupAttributes :: !Attributes
+    , _attrGroupDoc :: Maybe Documentation } |
+    AttributeGroupRef {
+      _attrGroupRef :: !(Ref AttributeGroup)
+    }
+    deriving (Data,Typeable,Eq,Show)
+
+
+-- | Convenience grouping of attributes and attribute groups, which
+-- are always showing up together in xsd.
+data Attributes =
+    Attributes {
+      _attrsAttributes :: ![Attribute],
+      _attrsAttributeGroups :: ![AttributeGroup]
+    } deriving (Data,Typeable,Eq,Show)
+
+-- | "occurs-min" and "occurs-max"
+data Occurs =
+    Occurs {
+      _occursMin :: !(Maybe String)
+    , _occursMax :: !(Maybe String)
+} deriving (Data,Typeable,Eq,Show)
+
+-- | XSD element production.
+data Element =
+    ElementType {
+      _elementName :: !QN
+    , _elementType :: !(Ref (Either ComplexType SimpleType))
+    , _elementOccurs :: !Occurs
+    , _elementDoc :: Maybe Documentation } |
+    ElementSimple {
+      _elementName :: !QN
+    , _elementSimple :: !SimpleType
+    , _elementOccurs :: !Occurs
+    , _elementDoc :: Maybe Documentation } |
+    ElementComplex {
+      _elementName :: !QN
+    , _elementComplex :: !ComplexType
+    , _elementOccurs :: !Occurs
+    , _elementDoc :: Maybe Documentation } |
+    ElementRef {
+      _elementRef :: !(Ref Element)
+    , _elementOccurs :: !Occurs }
+    deriving (Data,Typeable,Eq,Show)
+
+
+-- | XSD complexType production.
+data ComplexType =
+    ComplexTypeSimple {
+      _complexTypeName :: !(Maybe QN)
+    , _complexSimpleContent :: !SimpleContent
+    , _complexTypeDoc :: Maybe Documentation } |
+    ComplexTypeComplex {
+      _complexTypeName :: !(Maybe QN)
+    , _complexComplexContent :: !ComplexContent
+    , _complexTypeDoc :: Maybe Documentation } |
+    ComplexTypeCompositor {
+      _complexTypeName :: !(Maybe QN)
+    , _complexCompositor :: !(Maybe Compositor)
+    , _complexAttributes :: !Attributes
+    , _complexTypeDoc :: Maybe Documentation }
+    deriving (Data,Typeable,Eq,Show)
+
+-- | simpleContent under a complex type.
+data SimpleContent =
+    SimpleContentExtension {
+      _simpleContentBase :: !(Ref SimpleType)
+    , _simpleContentAttributes :: !Attributes
+    }
+   deriving (Data,Typeable,Eq,Show)
+
+
+-- | complexContent under a complex type.
+-- TODO: restrictions
+data ComplexContent =
+    ComplexContentExtension {
+      _complexContentBase :: !(Ref ComplexType)
+    , _complexContentAttributes :: !Attributes
+    , _complexContentCompositor :: Maybe Compositor
+    } deriving (Data,Typeable,Eq,Show)
+
+-- | Compositors.
+data Compositor =
+    CompositorGroup { _compGroup :: !Group } |
+    CompositorChoice { _compChoice :: !Choice } |
+    CompositorSequence { _compSequence :: !Sequence }
+    deriving (Data,Typeable,Eq,Show)
+
+-- | XSD "group" production.
+data Group =
+    GroupChoice {
+      _groupName :: !(Maybe QN),
+      _groupOccurs :: !Occurs,
+      _groupChoice :: !Choice
+    , _groupDoc :: Maybe Documentation } |
+    GroupSequence {
+      _groupName :: !(Maybe QN),
+      _groupOccurs :: !Occurs,
+      _groupSequence :: !Sequence
+    , _groupDoc :: Maybe Documentation } |
+    GroupRef {
+      _groupRef :: !(Ref Group),
+      _groupOccurs :: !Occurs
+    } deriving (Data,Typeable,Eq,Show)
+
+-- | Particles.
+data Particle =
+    PartElement { _partElement :: !Element } |
+    PartGroup { _partGroup :: !Group } |
+    PartChoice { _partChoice :: !Choice } |
+    PartSequence { _partSequence :: !Sequence }
+    deriving (Data,Typeable,Eq,Show)
+
+
+-- | XSD choice
+data Choice =
+    Choice {
+      _choiceOccurs :: !Occurs
+    , _choiceParticles :: ![Particle] }
+    deriving (Data,Typeable,Eq,Show)
+
+-- | XSD sequence.
+data Sequence =
+    Sequence {
+      _sequenceOccurs :: !Occurs
+    , _sequenceParticles :: ![Particle] }
+    deriving (Data,Typeable,Eq,Show)
+
+-- | Schema type, mapping top-level productions to qnames.
+data Schema =
+    Schema {
+      _simpleTypes :: !(Map QN SimpleType)
+    , _complexTypes :: !(Map QN ComplexType)
+    , _groups :: !(Map QN Group)
+    , _attributeGroups :: !(Map QN AttributeGroup)
+    , _elements :: !(Map QN Element)
+    , _attributes :: !(Map QN Attribute)
+    } deriving (Data,Typeable,Eq)
+instance Show Schema where
+    show (Schema sts cts gs ags es as) =
+        "Schema { simpleTypes = " ++ show (length sts) ++
+                     ", complexTypes = " ++ show (length cts) ++
+                     ", groups = " ++ show (length gs) ++
+                     ", attributeGroups = " ++ show (length ags) ++
+                     ", elements = " ++ show (length es) ++
+                     ", attributes = " ++ show (length as) ++
+                     "}"
+
+instance Monoid Schema where
+    mempty = Schema mempty mempty mempty mempty mempty mempty
+    (Schema a b c d e f) `mappend` (Schema g h i j k l) =
+        Schema (a<>g) (b<>h) (c<>i) (d<>j) (e<>k) (f<>l)
+
+
+
+
+-- Wow, really wish I didn't have to manually export all of these lenses.
+-- makeClassy has a workaround but then I get naming conflicts ......
+
+$(makeLenses ''QN)
+$(makeLenses ''Ref)
+$(makeLenses ''SimpleType)
+$(makeLenses ''Bound)
+$(makeLenses ''SimpleRestriction)
+$(makeLenses ''Union)
+$(makeLenses ''Attribute)
+$(makeLenses ''Use)
+$(makeLenses ''AttributeGroup)
+$(makeLenses ''Attributes)
+$(makeLenses ''Occurs)
+$(makeLenses ''Element)
+$(makeLenses ''ComplexType)
+$(makeLenses ''SimpleContent)
+$(makeLenses ''ComplexContent)
+$(makeLenses ''Compositor)
+$(makeLenses ''Group)
+$(makeLenses ''Particle)
+$(makeLenses ''Choice)
+$(makeLenses ''Sequence)
+$(makeLenses ''Schema)
+
+--
+-- Resolvable
+--
+
+-- | Resolvable indicates a type has a 'Ref' member that it can
+-- resolve from a top-level 'Schema' production.
+class (Typeable a) => Resolvable a where
+    resolve :: Schema -> a -> a
+
+instance Resolvable AttributeGroup where
+    resolve sch = over attrGroupRef (resolve sch)
+
+instance Resolvable (Ref AttributeGroup) where
+    resolve = refResolve "AttributeGroup" attributeGroups
+
+
+instance Resolvable Group where
+    resolve sch = over groupRef (resolve sch)
+
+instance Resolvable (Ref Group) where
+    resolve = refResolve "Group" groups
+
+instance Resolvable ComplexContent where
+    resolve sch = over complexContentBase (resolve sch)
+
+instance Resolvable (Ref ComplexType) where
+    resolve = refResolve "ComplexType" complexTypes
+
+instance Resolvable SimpleContent where
+    resolve sch = over simpleContentBase (resolve sch)
+
+instance Resolvable (Ref SimpleType) where
+    resolve = refResolve "SimpleType" simpleTypes
+
+instance Resolvable Element where
+    resolve sch = over elementRef (resolve sch) . over elementType (resolve sch)
+
+
+instance Resolvable (Ref (Either ComplexType SimpleType)) where
+    resolve sch (Unresolved f) = Resolved f $ either error id
+                                 ((Left <$> searchRefTarget "Either-ComplexType" complexTypes f sch)
+                                  <|>
+                                  (Right <$> searchRefTarget "Either-SimpleType" simpleTypes f sch))
+    resolve _ r = r
+
+
+instance Resolvable (Ref Element) where
+    resolve = refResolve "Element" elements
+
+instance Resolvable ComplexType where resolve _ = id
+instance Resolvable SimpleType where resolve _ = id
+
+
+
+instance Resolvable SimpleRestriction where
+    resolve sch = over simpleRestrictBase (resolve sch)
+
+instance Resolvable Union where
+    resolve sch = over (unionMemberTypes.traverse) (resolve sch)
+
+
+instance Resolvable Attribute where
+    resolve sch = over attrRef (resolve sch) .
+                  over attrType (resolve sch)
+
+instance Resolvable (Ref Attribute) where
+    resolve = refResolve "Attribute" attributes
+
+-- | Resolve a 'Ref' against a 'Schema'.
+refResolve
+  :: Resolvable r =>
+     String
+     -> Getting (Map QN r) Schema (Map QN r)
+     -> Schema
+     -> Ref r
+     -> Ref r
+refResolve n l sch (Unresolved f) = Resolved f $ either error id $ searchRefTarget n l f sch
+refResolve _ _ _ r = r
+
+-- | Search top-level 'QN's for a 'Ref's target.
+-- | Once found, target refs are also resolved -- not sure if necessary/practical.
+searchRefTarget
+  :: Resolvable b =>
+     String
+     -> Getting (Map QN b) Schema (Map QN b)
+     -> QN
+     -> Schema
+     -> Either String b
+searchRefTarget n targetLens v x = found . M.lookup v $ view targetLens x
+    where found (Just a) = Right (resolve x a)
+          found Nothing = Left $ n ++ ": ref search failed for " ++ show v
+
+
+
+--
+-- PARSING
+--
+
+-- | Consume a range attribute.
+ranged :: XParser m => String -> (String -> Bound String) -> m (Bound String)
+ranged e ctor = ctor <$> findChild (xsName e) (attr (name "value"))
+
+-- | Consume a minInclusive restriction.
+minRestrict :: XParser m => m (Bound String)
+minRestrict = ranged "minInclusive" Inclusive <|> ranged "minExclusive" Exclusive
+
+-- | Consume a maxInclusive restriction.
+maxRestrict :: XParser m => m (Bound String)
+maxRestrict = ranged "maxInclusive" Inclusive <|> ranged "maxExclusive" Exclusive
+
+-- | Consume a pattern restriction.
+pattern :: XParser m => m String
+pattern = findChild (xsName "pattern") (attr (name "value"))
+
+-- | Parse enum restrictions.
+enums :: XParser m => m [String]
+enums = findChildren (xsName "enumeration") (attr (name "value"))
+
+-- | Parse a QName.
+qn :: String -> QN
+qn = parsec qnParser
+
+-- | Match a simpleType restriction.
+simpleRestrict :: XParser m => m SimpleRestriction
+simpleRestrict =
+    findChild (xsName "restriction") $
+    SimpleRestriction <$> (Unresolved . qn <$> attr (name "base"))
+                          <*> enums <*> optional minRestrict <*>
+                              optional maxRestrict <*> optional pattern
+
+-- | Match a simpleType union.
+union :: XParser m => m Union
+union = findChild (xsName "union") $ do
+          let wsDelimited = P.many1 (attrParser >>= \r -> P.spaces >> return r)
+          mts <- map (Unresolved . qn) . parsec wsDelimited <$> attr (name "memberTypes")
+          uts <- findChildren (xsName "simpleType") simpleType
+          return $ Union mts uts
+
+-- | Run parsec.
+parsec :: (P.Stream s Identity t) => P.Parsec s () a -> s -> a
+parsec p s = either (error.show) id $ P.parse p "ParseXsd" s
+
+-- | Attribute text parser, without whitespace.
+attrParser :: P.Parsec String m String
+attrParser = (:) <$> h <*> r
+    where h = P.letter <|> P.oneOf "_:"
+          r = many $ P.alphaNum <|> P.oneOf "-_:."
+
+-- | QName parser.
+qnParser :: P.Parsec String m QN
+qnParser = P.try ((\p _ l -> QN l (Just p)) <$> many (P.letter <|> P.oneOf "_") <*>
+           P.char ':' <*> many (P.alphaNum <|> P.oneOf "-_.")) <|>
+           (`QN` Nothing) <$> many (P.alphaNum <|> P.oneOf "-_.")
+
+-- | Match documentation, always optional.
+documentation :: XParser m => m (Maybe Documentation)
+documentation = (check.concat.concat) <$>
+                findChildren (xsName "annotation")
+                (findChildren (xsName "documentation")
+                 textContent)
+    where check [] = Nothing
+          check s = Just (Documentation s)
+
+-- | Match a simpleType.
+simpleType :: XParser m => m SimpleType
+simpleType = do
+  atEl (xsName "simpleType")
+  n <- fmap qn <$> optional (attr (name "name"))
+  SimpleTypeRestrict n <$> simpleRestrict <*> documentation
+    <|> SimpleTypeUnion n <$> union <*> documentation
+
+-- | Match an attribute.
+attribute :: XParser m => m Attribute
+attribute = do
+  atEl (xsName "attribute")
+  d <- optional (attr (name "default"))
+  u <- optional (attr (name "use"))
+  u' <- case u of
+          Nothing -> return Optional
+          Just v | v == "required" -> return Required
+                 | v == "optional" -> return Optional
+                 | v == "prohibited" -> return Prohibited
+                 | otherwise -> throwError $ "Invalid use value: " ++ show v
+  let aNorm = do
+              n <- qn <$> attr (name "name")
+              t <- qn <$> attr (name "type")
+              return $ AttributeType n (Unresolved t) u' d
+      aRef = do
+              r <- qn <$> attr (name "ref")
+              return $ AttributeRef (Unresolved r) u' d
+      aSimp = do
+              n <- qn <$> attr (name "name")
+              t <- oneChild simpleType
+              return $ AttributeSimpleType n t
+  aNorm <|> aRef <|> aSimp
+
+-- | Match an attributeGroup.
+attributeGroup :: XParser m => m AttributeGroup
+attributeGroup = do
+  atEl (xsName "attributeGroup")
+  -- debugStack >> error "attributeGroup"
+  AttributeGroup . qn <$> attr (name "name") <*> attrs <*> documentation <|>
+    (AttributeGroupRef . Unresolved . qn) <$> attr (name "ref")
+
+-- | Match attributes and attributeGroups (which often come together).
+attrs :: XParser m => m Attributes
+attrs = Attributes <$>
+               findChildren (xsName "attribute") attribute <*>
+               findChildren (xsName "attributeGroup") attributeGroup
+
+
+
+-- | Match a complex type.
+complexType :: XParser m => m ComplexType
+complexType = do
+  atEl (xsName "complexType")
+  n <- fmap qn <$> optional (attr (name "name"))
+  ComplexTypeSimple n <$> simpleContent <*> documentation
+    <|> ComplexTypeComplex n <$> complexContent <*> documentation
+    <|> ComplexTypeCompositor n <$> optional (oneChild compositor) <*> attrs <*> documentation
+
+-- | Match simple content.
+simpleContent :: XParser m => m SimpleContent
+simpleContent = findChild (xsName "simpleContent")
+                (findChild (xsName "extension")
+                 (SimpleContentExtension <$> (Unresolved . qn <$> attr (name "base")) <*> attrs))
+
+-- | Match complex content.
+complexContent :: XParser m => m ComplexContent
+complexContent = findChild (xsName "complexContent")
+                 (findChild (xsName "extension")
+                  (ComplexContentExtension <$> (Unresolved . qn <$> attr (name "base")) <*>
+                                           attrs <*> optional (oneChild compositor)))
+
+-- | Consume a compositor production.
+compositor :: XParser m => m Compositor
+compositor = CompositorGroup <$> group <|>
+             CompositorSequence <$> sequence <|>
+             CompositorChoice <$> choice
+
+-- | Match group.
+group :: XParser m => m Group
+group = do
+  atEl (xsName "group")
+  GroupRef <$> (Unresolved . qn <$> attr (name "ref")) <*> occurs
+    <|> GroupChoice <$> (fmap qn <$> optional (attr (name "name")))
+            <*> occurs <*> oneChild choice <*> documentation
+    <|> GroupSequence <$> (fmap qn <$> optional (attr (name "name")))
+            <*> occurs <*> oneChild sequence <*> documentation
+
+-- | Parse occurs-* attributes.
+occurs :: XParser m => m Occurs
+occurs = Occurs <$> optional (attr (name "minOccurs")) <*> optional (attr (name "maxOccurs"))
+
+-- | Match sequence.
+sequence :: XParser m => m Sequence
+sequence = atEl (xsName "sequence") >> Sequence <$> occurs <*> particles
+
+-- | Match choice.
+choice :: XParser m => m Choice
+choice = atEl (xsName "choice") >> Choice <$> occurs <*> particles
+
+-- | Consume a particle production.
+particles :: XParser m => m [Particle]
+particles = allChildren (PartGroup <$> group <|>
+                         PartSequence <$> sequence <|>
+                         PartChoice <$> choice <|>
+                         PartElement <$> element)
+
+-- | Match element.
+element :: XParser m => m Element
+element = do
+  atEl (xsName "element")
+  let el = ElementType . qn <$> attr (name "name")
+           <*> (Unresolved . qn <$> attr (name "type")) <*> occurs <*> documentation
+      elSim = ElementSimple . qn <$> attr (name "name")
+              <*> oneChild simpleType <*> occurs <*> documentation
+      elCom = ElementComplex . qn <$> attr (name "name")
+              <*> oneChild complexType <*> occurs <*> documentation
+      elRef = ElementRef <$> (Unresolved . qn <$> attr (name "ref")) <*> occurs
+  el <|> elRef <|> elSim <|> elCom
+
+
+-- | Main parser.
+schemaParser :: XParser m => m Schema
+schemaParser = Schema <$>
+         (mapifyJust simpleTypeName <$> anyChildren simpleType) <*>
+         (mapifyJust complexTypeName <$> anyChildren complexType) <*>
+         (mapifyJust groupName <$> anyChildren group) <*>
+         (mapify attrGroupName <$> anyChildren attributeGroup) <*>
+         (mapify elementName <$> anyChildren element) <*>
+         (mapify attrName <$> anyChildren attribute)
+
+
+mapify :: Show a => Getting (Leftmost QN) a QN -> [a] -> Map QN a
+mapify l = M.fromList . map (\a -> (justName a $ firstOf l a,a))
+    where justName a = fromMaybe (error $ "mapify: name field not present: " ++ show a)
+
+mapifyJust :: Show a => Getting (Leftmost (Maybe QN)) a (Maybe QN) -> [a] -> Map QN a
+mapifyJust l = M.fromList . map (\a -> (justName a $ firstOf l a, a))
+    where justName a = fromMaybe (error $ "mapifyJust: name required at top level: " ++ show a) .
+                       fromMaybe (error $ "mapify: name field not present: " ++ show a)
+
+
+-- | Adjust top-level names to have supplied prefix.
+namespaceSchema :: String -> Schema -> Schema
+namespaceSchema ns =
+    let pfx (k,v) = (setPfx k, over template justNoPfx v)
+        justNoPfx q@(QN _ (Just _)) = q
+        justNoPfx q = setPfx q
+        setPfx = set qPrefix (Just ns)
+        remap :: Data a => M.Map QN a -> M.Map QN a
+        remap = M.fromList . over traverse pfx . M.toList
+    in
+    over simpleTypes remap .
+    over complexTypes remap .
+    over groups remap .
+    over attributeGroups remap .
+    over elements remap .
+    over attributes remap
+
+-- | XML Schema "anySimpleType" (ie, built-ins like string, double etc).
+anySimpleTypeName :: QN
+anySimpleTypeName = QN "anySimpleType" (Just "xs")
+
+-- | Load XSD itself as a 'Schema'.
+loadXsdSchema :: FilePath -> IO Schema
+loadXsdSchema f = do
+  ts <- _simpleTypes . namespaceSchema "xs" <$> parseFile f
+  let anySimpleType = SimpleTypeRestrict (Just anySimpleTypeName)
+                      (SimpleRestriction Final [] Nothing Nothing Nothing)
+                      Nothing
+  let s = set simpleTypes (M.insert anySimpleTypeName anySimpleType ts) mempty
+  return s
+
+
+-- | Parse an XSD file.
+parseFile :: FilePath -> IO Schema
+parseFile f = readXml f >>= parseX schemaParser >>= either (throwIO . userError) return
diff --git a/src/Fadno/Xml/XParse.hs b/src/Fadno/Xml/XParse.hs
new file mode 100644
--- /dev/null
+++ b/src/Fadno/Xml/XParse.hs
@@ -0,0 +1,114 @@
+{-# LANGUAGE ConstraintKinds #-}
+{-# LANGUAGE FlexibleContexts #-}
+{-# LANGUAGE GeneralizedNewtypeDeriving #-}
+
+-- | Combinators over XML.
+module Fadno.Xml.XParse
+
+    (
+     XParse(..),runXParse,xfail,require,xattr,xtext,xchild,xread,xel
+    -- * QNames
+    , name,xsName
+    -- * Utility
+    , readXml
+
+    ) where
+
+import qualified Text.XML.Light as X
+import qualified Text.XML.Light.Cursor as C
+
+import Control.Exception
+import Control.Monad.State.Strict hiding (sequence)
+import Control.Monad.Except hiding (sequence)
+import Data.Either
+import Control.Applicative
+import Prelude hiding (sequence)
+import Control.Lens
+import Text.Read (readMaybe)
+
+
+-- | Monoid errors with path.
+type XErrors = [([C.Tag],String)]
+
+-- | Parsing monad.
+newtype XParse a = XParse { unXParse :: StateT C.Cursor (Except XErrors) a }
+    deriving (Functor,Applicative,Monad,MonadState C.Cursor,MonadError XErrors,Alternative)
+
+
+-- | Run monad.
+runXParse :: X.Element -> XParse a -> Either XErrors a
+runXParse e act = runExcept (evalStateT (unXParse act) (C.fromElement e))
+
+-- LENSES
+
+lcurrent :: Lens' C.Cursor X.Content
+lcurrent f s = fmap (\a -> s { C.current = a}) (f (C.current s))
+
+_Elem :: Prism' X.Content X.Element
+_Elem = prism X.Elem $ \c -> case c of X.Elem e -> Right e; _ -> Left c
+
+-- | Parse failure.
+xfail :: String -> XParse a
+xfail msg = do
+  ts <- map (view _2) . C.parents <$> get
+  throwError [(ts,msg)]
+
+-- | Require 'Just' a thing.
+require :: String -> Maybe a -> XParse a
+require msg = maybe (xfail $ "Required: " ++ msg) return
+
+-- | Operate on attribute value/
+xattr :: X.QName -> XParse String
+xattr n = xel >>= require ("attribute " ++ show n) . X.findAttr n
+
+-- | Operate on an element.
+xel :: XParse X.Element
+xel = firstOf _Elem <$> use lcurrent >>= require "element"
+
+-- | Operate on text.
+xtext :: XParse String
+xtext = X.strContent <$> xel
+
+-- | Consume a child element.
+xchild :: X.QName -> XParse a -> XParse a
+xchild n act = do
+  fc <- C.firstChild <$> get >>= require "at least one child"
+  let firstEl :: C.Cursor -> XParse C.Cursor
+      firstEl c = case firstOf (lcurrent._Elem) c of
+                    Just e -> do
+                      when (X.elName e /= n) (xfail $ "Element not found: " ++ show n)
+                      return c
+                    Nothing -> do
+                      c' <- C.right c & require "at least one element child"
+                      firstEl c'
+  e <- firstEl fc
+  put e
+  r <- catchError (Right <$> act) (return . Left)
+  case r of
+    Right a -> do
+           p <- C.removeGoUp <$> get >>= require "parent"
+           put p
+           return a
+    Left err -> do
+           p <- C.parent <$> get >>= require "parent"
+           put p
+           throwError err
+
+-- | Parse with `read`.
+xread :: Read a => String -> String -> XParse a
+xread msg s = require (msg ++ ": " ++ s) $ readMaybe s
+
+
+
+
+-- | XSD name.
+xsName :: String -> X.QName
+xsName n = X.QName n (Just "http://www.w3.org/2001/XMLSchema") (Just "xs")
+
+-- | Local name.
+name :: String -> X.QName
+name n = X.QName n Nothing Nothing
+
+-- | Convenience to read in top element from file.
+readXml :: FilePath -> IO X.Element
+readXml f = maybe (throwIO $ userError "parse failed") return =<< X.parseXMLDoc <$> readFile f
diff --git a/src/Fadno/Xml/XParser.hs b/src/Fadno/Xml/XParser.hs
new file mode 100644
--- /dev/null
+++ b/src/Fadno/Xml/XParser.hs
@@ -0,0 +1,170 @@
+{-# LANGUAGE ConstraintKinds #-}
+{-# LANGUAGE FlexibleContexts #-}
+
+-- | Backtracking combinators for consuming XML productions (elements, attributes).
+module Fadno.Xml.XParser {-# DEPRECATED "in favor of XParse" #-}
+    (
+     -- * XParser monad
+     XParser
+    ,parseX
+    -- * Stack manipulation
+    ,peek,push,pop,checkStack
+    -- * Element operations
+    ,atEl,findChild,findChildren,anyChildren,oneChild,allChildren,manyOrdered
+    -- * Attribute/Text operations
+    ,attr,textContent
+    -- * QNames
+    ,name,xsName
+    -- * Utility
+    ,readXml
+    ) where
+
+import qualified Text.XML.Light as X
+
+import Control.Exception
+import Control.Monad.State.Strict hiding (sequence)
+import Control.Monad.Except hiding (sequence)
+import Data.Either
+import Control.Applicative
+import Prelude hiding (sequence)
+import Control.Lens
+
+-- Element lenses
+lAttrs :: Lens' X.Element [X.Attr]
+lAttrs f s = fmap (\a -> s { X.elAttribs = a }) (f $ X.elAttribs s)
+lContent :: Lens' X.Element [X.Content]
+lContent f s = fmap (\a -> s { X.elContent = a }) (f $ X.elContent s)
+_Elem :: Prism' X.Content X.Element
+_Elem = prism X.Elem $ \c -> case c of X.Elem e -> Right e; _ -> Left c
+
+-- | Stack entry tracking identified elements.
+
+-- | XParser constraint kind. Stack state + alternative + errors.
+type XParser m = (Alternative m, MonadState [X.Element] m, MonadError String m)
+
+-- | run XParser on an element.
+parseX :: (Monad m) => StateT [X.Element] (ExceptT String m) b -> X.Element -> m (Either String b)
+parseX sel e = runExceptT (evalStateT sel [e])
+
+-- | Stack peek.
+peek :: XParser m => m X.Element
+peek = head <$> checkStack
+
+-- | Verify populated stack.
+checkStack :: XParser m => m [X.Element]
+checkStack = get >>= \s ->
+             if null s then throwError "Invalid stack" else return s
+
+-- | Stack push.
+push :: XParser m => X.Element -> m ()
+push e = modify (e:)
+
+-- | Stack pop.
+pop :: XParser m => m ()
+pop = checkStack >>= \(_:rest) -> put rest
+
+-- | Expect/consume a particular attribute.
+attr :: XParser m => X.QName -> m String
+attr n = do
+  as <- view lAttrs <$> peek
+  let (as',found) = foldl test ([],Nothing) as
+      test (rs,f@(Just _)) a = (a:rs,f)
+      test (rs,_) a | X.attrKey a == n = (rs,Just (X.attrVal a))
+                    | otherwise = (a:rs,Nothing)
+  case found of
+    Nothing -> throwError $ "Attribute not found: " ++ show n
+    Just t -> do
+               _head.lAttrs .= as'
+               return t
+
+-- | Get text content, returning empty string if none, per 'strContent'.
+textContent :: XParser m => m String
+textContent = X.strContent <$> peek
+
+-- | Verify and "consume" current element.
+atEl :: XParser m => X.QName -> m ()
+atEl n = do
+  e <- X.elName <$> peek
+  when (n /= e) $ throwError ("Wrong element name: " ++ show e)
+
+-- | Find child element and act on it.
+findChild :: XParser m => X.QName -> m a -> m a
+findChild n act = do
+  c <- onChildren ((==n) . X.elName) True True act
+  case c of
+    [] -> throwError $ "No such child " ++ show n
+    [e] -> return e
+    _ -> throwError $ "findChild: multiple results: " ++ show n
+
+-- | Expect to find one child only, and run action on it.
+oneChild :: XParser m => m a -> m a
+oneChild act = do
+  cs <- onChildren (const True) True True act
+  case cs of
+    [c] -> return c
+    _ -> throwError $ "oneChild: found " ++ show (length cs)
+
+-- | Find zero or many children and act on them.
+findChildren :: XParser m => X.QName -> m a -> m [a]
+findChildren n = onChildren ((==n) . X.elName) False False
+
+-- | Act on all children.
+allChildren :: XParser m => m a -> m [a]
+allChildren = onChildren (const True) False False
+
+-- | Act on, consume children.
+-- Accepts filter, optional flag, "just1" flag.
+onChildren :: XParser m => (X.Element -> Bool) -> Bool -> Bool -> m a -> m [a]
+onChildren filt opt just1 act = do
+  h <- peek
+  let exec rs c@(X.Elem e)
+          | filt e =
+              if just1 && not (null (view _2 rs))
+              then return $ over _1 (c:) rs
+              else do
+                push e
+                r <- catchError (Right <$> act) (return . Left)
+                pop
+                case r of
+                  Left err | opt -> return $ over _1 (c:) rs
+                           | otherwise -> return $ over _3 (err:) rs
+                  Right v -> return $ over _2 (v:) rs
+          | otherwise = return $ over _1 (c:) rs
+      exec rs c = return $ over _1 (c:) rs
+  (cs',rs,fs) <- foldM exec ([],[],[]) (view lContent h)
+  unless (null fs) $ throwError $ "Failure: " ++ show fs
+  _head.lContent .= reverse cs'
+  return (reverse rs)
+
+-- | Flailing attempt to restore "order" by faking a single-child element one at a time.
+manyOrdered :: XParser m => m a -> m [a]
+manyOrdered act = do
+  cs <- view lContent <$> peek
+  let fake c = X.Element (name "fake") [] [c] Nothing
+      exec rs c = do
+                push (fake c)
+                r <- catchError (Right <$> act) (return . Left)
+                pop
+                case r of
+                  Left _ -> return (over _2 (c:) rs)
+                  Right a -> return (over _1 (a:) rs)
+  (as,cs') <- foldM exec ([],[]) cs
+  _head.lContent .= reverse cs'
+  return $ reverse as
+
+
+-- | Run optional action on all children.
+anyChildren :: XParser m => m a -> m [a]
+anyChildren = onChildren (const True) True False
+
+-- | Special support for XSD QNames.
+xsName :: String -> X.QName
+xsName n = X.QName n (Just "http://www.w3.org/2001/XMLSchema") (Just "xs")
+
+-- | Local-only QName.
+name :: String -> X.QName
+name n = X.QName n Nothing Nothing
+
+-- | Convenience to read in top element from file.
+readXml :: FilePath -> IO X.Element
+readXml f = maybe (throwIO $ userError "parse failed") return =<< X.parseXMLDoc <$> readFile f
