diff --git a/LICENSE b/LICENSE
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+++ b/LICENSE
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+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
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+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/Setup.lhs b/Setup.lhs
new file mode 100644
--- /dev/null
+++ b/Setup.lhs
@@ -0,0 +1,3 @@
+#! /usr/bin/env runhaskell
+> import Distribution.Simple
+> main = defaultMain
diff --git a/haskore-synthesizer.cabal b/haskore-synthesizer.cabal
new file mode 100644
--- /dev/null
+++ b/haskore-synthesizer.cabal
@@ -0,0 +1,61 @@
+Name:           haskore-synthesizer
+Version:        0.0.2
+License:        GPL
+License-File:   LICENSE
+Author:         Henning Thielemann <haskell@henning-thielemann.de>
+Maintainer:     Henning Thielemann <haskell@henning-thielemann.de>
+Homepage:       http://www.haskell.org/haskellwiki/Synthesizer
+Package-URL:    http://darcs.haskell.org/haskore-synthesizer/
+Category:       Sound
+Synopsis:       Audio signal processing coded in Haskell
+Description:
+  Use native Haskell Audio Signal Processing for Music rendering with Haskore
+  Contains several example songs.
+Stability:      Experimental
+Tested-With:    GHC==6.4.1, GHC==6.8.2
+Cabal-Version:  >=1.2
+Build-Type:     Simple
+
+Flag splitBase
+  description: Choose the new smaller, split-up base package.
+
+Flag buildExamples
+  description: Build example executables
+  default:     False
+
+Library
+  Build-Depends:
+    synthesizer >= 0.0.3 && < 0.1,
+    haskore >=0.0.5 && <0.1,
+    -- midi >=0.1.1 && <0.1,
+    numeric-prelude >=0.0.3 && <0.1,
+    -- dependency on non-negative for Haddock
+    non-negative >=0.0.1 && <0.1,
+    event-list >=0.0.6 && <0.1,
+    data-accessor >=0.1 && <0.2
+
+  If flag(splitBase)
+    Build-Depends:
+      base >= 3, random >= 1.0 && < 1.1
+  Else
+    Build-Depends:
+      base >= 1.0 && < 2
+
+  GHC-Options:    -Wall
+  Hs-source-dirs: src
+  Exposed-modules:
+    Haskore.Interface.Signal.InstrumentMap
+    Haskore.Interface.Signal.Note
+    Haskore.Interface.Signal.Write
+    Haskore.Interface.Signal.Example.ChildSong6ToSignal
+    Haskore.Interface.Signal.Example.FMBassLine
+    Haskore.Interface.Signal.Example.FilterSaw
+    Haskore.Interface.Signal.Example.Guitar
+    Haskore.Interface.Signal.Example.SwanLake
+    Haskore.Interface.Signal.Example.WinterAde
+
+Executable rendersong
+  If !flag(buildExamples)
+    Buildable: False
+  Hs-Source-Dirs: src
+  Main-Is: RenderSong.hs
diff --git a/src/Haskore/Interface/Signal/Example/ChildSong6ToSignal.hs b/src/Haskore/Interface/Signal/Example/ChildSong6ToSignal.hs
new file mode 100644
--- /dev/null
+++ b/src/Haskore/Interface/Signal/Example/ChildSong6ToSignal.hs
@@ -0,0 +1,43 @@
+-- Partial Encoding of Chick Corea's ``Children's Song No. 6''
+
+module Haskore.Interface.Signal.Example.ChildSong6ToSignal where
+
+import qualified Haskore.Example.ChildSong6 as ChildSong6
+import Synthesizer.Plain.Instrument (fastBell)
+import qualified Synthesizer.Plain.Signal as Sig
+import qualified Sox.File
+
+import qualified Haskore.Music.GeneralMIDI as Music
+import Haskore.Interface.Signal.Write(Time, Volume)
+
+import qualified Haskore.Performance.Fancy as FancyPf
+import qualified Haskore.Interface.Signal.Write as MusicSignal
+
+import System.Exit (ExitCode)
+
+
+
+-- Volume type arises from Haskore
+songToSignalMono :: Time -> Time -> Music.T -> Sig.T Volume
+songToSignalMono sampleRate dif song =
+   MusicSignal.fromRhythmicMusic
+      sampleRate
+      (MusicSignal.detuneInstrs dif
+          [(Music.AcousticGrandPiano,
+            MusicSignal.amplify (0.1::Volume) fastBell)])
+      FancyPf.map
+      (MusicSignal.contextMetro 60 Music.qn)
+      song
+
+songSignal :: Time -> Time -> Sig.T Volume
+songSignal sampleRate dif =
+   songToSignalMono sampleRate dif (Music.transpose 12 ChildSong6.song)
+
+
+stereoSignal :: Time -> Sig.T (Volume,Volume)
+stereoSignal sampleRate =
+   zip (songSignal sampleRate 1.001)
+       (songSignal sampleRate 0.999)
+
+main :: IO ExitCode
+main = Sox.File.renderStereo "ChildSong6" 22050 stereoSignal
diff --git a/src/Haskore/Interface/Signal/Example/FMBassLine.hs b/src/Haskore/Interface/Signal/Example/FMBassLine.hs
new file mode 100644
--- /dev/null
+++ b/src/Haskore/Interface/Signal/Example/FMBassLine.hs
@@ -0,0 +1,146 @@
+{-# OPTIONS -fno-implicit-prelude #-}
+module Haskore.Interface.Signal.Example.FMBassLine where
+
+import qualified Synthesizer.Plain.Filter.NonRecursive as FiltNR
+import qualified Synthesizer.Plain.Oscillator as Osci
+import qualified Synthesizer.Plain.Signal as Sig
+import           Synthesizer.Plain.Instrument (fmBell)
+import qualified Sox.File
+
+import qualified Haskore.Basic.Pitch as Pitch
+import qualified Haskore.Melody          as Melody
+import           Haskore.Melody.Standard as StdMelody
+import qualified Haskore.Music           as Music
+import           Haskore.Music.Standard  as StdMusic
+import qualified Haskore.Performance.Fancy as FancyPf
+import qualified Haskore.Interface.Signal.Note  as Note
+import qualified Haskore.Interface.Signal.Write as MusicSignal
+import Haskore.Interface.Signal.Write(Time, Volume)
+
+import qualified Number.NonNegative as NonNeg
+
+import System.Random
+import qualified Algebra.Transcendental as Trans
+import qualified Algebra.Module         as Module
+import qualified Algebra.RealField      as RealField
+
+import System.Exit(ExitCode)
+
+import PreludeBase
+import NumericPrelude
+
+------------ The song description -------------
+
+
+data MyNote =
+      Bass ModIndex ModDepth Pitch.T
+    | Saw  Volume Vibrato Pitch.T
+   deriving (Show, Eq, Ord)
+
+type ModIndex = Int
+type ModDepth = Time
+type ModParam = (ModIndex, ModDepth)
+
+type Vibrato  = Time
+
+type NoteIon = Music.Dur -> () -> Melody.T ()
+
+
+makeBassLine :: [NoteIon] -> [ModIndex] -> [ModDepth] -> Music.T MyNote
+makeBassLine mel indexes depths = line
+   (zipWith3 (\n index depth ->
+                 Music.mapNote
+                    (\(Melody.Note _ p) -> (Bass index depth p))
+                    (n en ()))
+             mel indexes depths)
+
+bassPattern :: [NoteIon]
+bassPattern =
+   cycle [a 0, a 0, a 0, e 1, a 0, a 0, f 1, a 0, a 0, d 1, a 0, a 0]
+
+bassLine :: Music.T MyNote
+bassLine =
+   transpose (-12)
+      (makeBassLine bassPattern
+         (randomRs (1,4)   (mkStdGen 12354))
+         (randomRs (0,2)   (mkStdGen 35902)))
+
+
+makeSawLine :: [([NoteIon], [(Dur, Dur, Vibrato)])] -> Music.T MyNote
+makeSawLine = line . concatMap
+   (\(chrd, params) ->
+        map (\(durTone,durRest,vib) ->
+               let mkNote dur vel =
+                      chord (map (\n ->
+                                     Music.mapNote
+                                        (\(Melody.Note _ p) ->
+                                          (Saw vel vib p))
+                                        (n dur ()))
+                                 chrd)
+               in  mkNote durTone 1 +:+ mkNote durRest 0.3)
+            params)
+
+zn :: Dur
+zn = NonNeg.fromNumber zero
+
+sawPattern :: [([NoteIon], [(Dur, Dur, Vibrato)])]
+sawPattern =
+   let v0 = (sn,sn,0.01)
+       v1 = (en,zn,0.02)
+       v2 = (qn,zn,0.05)
+       v3 = (qn,zn,0.00)
+   in  cycle [([a 0, c 1, e 1], replicate 8 v0 ++ [v0,v0,v0,v1]),
+              ([g 0, b 0, d 1], [v2]),
+              ([a 0, c 1, e 1], [v3]),
+              ([a 0, d 1, f 1], replicate 8 v0 ++ [v0,v0,v0,v1]),
+              ([a 0, e 1, g 1], [v2]),
+              ([a 0, d 1, f 1], [v3])]
+
+sawLine :: Music.T MyNote
+sawLine = makeSawLine sawPattern
+
+song :: Music.T MyNote
+song = bassLine =:= sawLine
+
+
+----------- Configuration of the player -----------
+
+
+noteToSignal ::
+   Time -> Volume -> Pitch.Relative -> MyNote -> Note.T Volume Volume
+noteToSignal detune dyn trans note =
+   let freq p = detune * Note.pitchFromStd trans p
+   in  Note.Cons (\sampleRate ->
+          case note of
+             Bass index depth p ->
+                FiltNR.amplifyVector (dyn * 0.3)
+                    (fmBell sampleRate depth (fromIntegral index) (freq p))
+             Saw vel vib p ->
+                FiltNR.amplifyVector (dyn * vel*0.4)
+                    (saw sampleRate vib 10 (freq p)))
+
+saw :: (Module.C a a, Trans.C a, RealField.C a) =>
+             a -> a -> a -> a -> Sig.T a
+saw sampleRate modDepth modFreq freq =
+   Osci.freqModSaw 0
+      (map (\y -> freq/sampleRate * (1+modDepth*y))
+           (Osci.staticSine 0.25 (modFreq/sampleRate)))
+
+-- Volume type arises from Haskore
+songToSignalMono :: Time -> Time -> Music.T MyNote -> Sig.T Volume
+songToSignalMono sampleRate dif music =
+   MusicSignal.fromMusic
+      sampleRate (noteToSignal dif)
+      FancyPf.map
+      (MusicSignal.contextMetro 240 qn)
+      music
+
+stereoSignal :: Time -> Sig.T (Volume,Volume)
+stereoSignal sampleRate =
+   zip (songToSignalMono sampleRate 1.003 song)
+       (songToSignalMono sampleRate 0.997 song)
+
+main :: IO ExitCode
+main =
+   Sox.File.renderStereo "FMBassLine" 44100
+      (\sampleRate -> take (round (16*sampleRate)) (stereoSignal sampleRate))
diff --git a/src/Haskore/Interface/Signal/Example/FilterSaw.hs b/src/Haskore/Interface/Signal/Example/FilterSaw.hs
new file mode 100644
--- /dev/null
+++ b/src/Haskore/Interface/Signal/Example/FilterSaw.hs
@@ -0,0 +1,116 @@
+{-# OPTIONS -fno-implicit-prelude #-}
+module Haskore.Interface.Signal.Example.FilterSaw where
+
+import qualified Synthesizer.Plain.Control    as Ctrl
+import qualified Synthesizer.Plain.Oscillator as Osci
+import qualified Synthesizer.Plain.Filter.Recursive.Comb as Comb
+import qualified Synthesizer.Plain.Filter.Recursive.Allpass as Allpass
+import qualified Synthesizer.Plain.Signal as Sig
+import Synthesizer.Plain.Instrument (filterSaw, )
+import qualified Sox.File
+
+import qualified Haskore.Basic.Pitch as Pitch
+import qualified Haskore.Melody          as Melody
+import           Haskore.Melody.Standard as StdMelody
+import qualified Haskore.Music           as Music
+import           Haskore.Music.Standard  as StdMusic
+import qualified Haskore.Performance.Fancy as FancyPf
+import qualified Haskore.Interface.Signal.Note  as Note
+import qualified Haskore.Interface.Signal.Write as MusicSignal
+import Haskore.Interface.Signal.Write(Time,Volume)
+
+import System.Random (randomRs, mkStdGen, )
+-- import Algebra.Additive as Additive(zero)
+import qualified Algebra.Transcendental as Trans
+import qualified Algebra.Module         as Module
+
+import System.Exit(ExitCode)
+import qualified Data.List as List
+
+import PreludeBase
+import NumericPrelude
+
+------------ The song description -------------
+
+
+data MyNote = FilterSaw Double Pitch.T
+   deriving (Show, Eq, Ord)
+
+type Resonance = Time
+
+
+pattern :: Music.T MyNote
+pattern = makePattern patternList (Osci.staticSine 0 0.05)
+
+makePattern :: [Music.Dur -> Resonance -> Melody.T Resonance] ->
+   [Resonance] -> Music.T MyNote
+makePattern mel reson = line
+   (zipWith (\n r -> Music.mapNote
+                        (\(Melody.Note r' p) -> (FilterSaw r' p))
+                        (n qn r))
+            mel reson)
+
+patternList :: [Music.Dur -> Resonance -> Melody.T Resonance]
+patternList = concatMap (List.take 16 . cycle) (
+   [[a 0, b 0, c 1, e 1],
+    [a 0, b 0, c 1, f 1],
+    [a 0, d 1, e 1, f 1],
+    [a 0, b 0, c 1, e 1]])
+
+
+----------- Configuration of the player -----------
+
+
+noteToSignal ::
+   Time -> Volume -> Pitch.Relative -> MyNote -> Note.T Volume Volume
+noteToSignal detune _ trans (FilterSaw reso p) =
+   Note.Cons (\sampleRate ->
+      filterSaw sampleRate ((2000::Time)  *  2 ** (1.5*reso))
+         (detune * Note.pitchFromStd trans p))
+
+-- Volume type arises from Haskore
+songToSignalMono :: Time -> Volume -> Music.T MyNote -> Sig.T Volume
+songToSignalMono sampleRate dif song =
+   MusicSignal.fromMusic
+      sampleRate (noteToSignal dif)
+      FancyPf.map
+      (MusicSignal.contextMetro 480 qn)
+      song
+
+songSignal :: Time -> Sig.T Volume
+songSignal sampleRate = songToSignalMono sampleRate 1 pattern
+
+{- use allpass with different parameters for both stereo channels
+   in order to 'spread' the frequency spectrum over the stereo panorama -}
+allpassChannel ::
+   (Module.C a v, Trans.C a) => a -> a -> [v] -> [v]
+allpassChannel sampleRate sign x =
+   let order = 10
+   in  Allpass.cascade order
+          (map ((\(Allpass.Parameter k) -> Allpass.Parameter (sign*k)) .
+                (Allpass.flangerParameter order))
+               (Ctrl.exponential2 (3*sampleRate) (2000/sampleRate))
+               --(repeat (50/sampleRate))
+           ) x
+
+stereoSignal :: Time -> Sig.T (Volume,Volume)
+stereoSignal sampleRate =
+   zip (allpassChannel sampleRate ( 1 :: Volume) (songSignal sampleRate))
+       (allpassChannel sampleRate (-1 :: Volume) (songSignal sampleRate))
+
+reverb :: Time -> Sig.T (Volume,Volume) -> Sig.T (Volume,Volume)
+reverb sampleRate =
+   Comb.runMulti
+      (List.take 8 (randomRs (round(0.10*sampleRate::Time),
+                              round(0.50*sampleRate::Time))
+                             (mkStdGen 12354)))
+      (0.1::Volume)
+
+reverbedSignal :: Time -> Sig.T (Volume,Volume)
+reverbedSignal sampleRate =
+   reverb sampleRate
+      (stereoSignal sampleRate ++
+       List.replicate (round (2*sampleRate)) zero)
+
+main :: IO ExitCode
+main = Sox.File.renderStereo "FilterSaw" 22050 reverbedSignal
diff --git a/src/Haskore/Interface/Signal/Example/Guitar.hs b/src/Haskore/Interface/Signal/Example/Guitar.hs
new file mode 100644
--- /dev/null
+++ b/src/Haskore/Interface/Signal/Example/Guitar.hs
@@ -0,0 +1,94 @@
+module Haskore.Interface.Signal.Example.Guitar where
+
+-- the song
+import Haskore.Example.Guitar(parallelSong, stringPitches)
+-- the instrument
+import Filter.Example(guitar)
+
+import qualified Haskore.Basic.Pitch as Pitch
+import           Haskore.Music.Standard  as StdMusic
+import           Haskore.Music.Rhythmic  as RhyMusic
+import qualified Haskore.Performance.Fancy as FancyPf
+import qualified Haskore.Interface.Signal.InstrumentMap as InstrMap
+import qualified Haskore.Interface.Signal.Write as MusicSignal
+import Haskore.Interface.Signal.Write(Time,Volume)
+
+import qualified Synthesizer.Plain.Filter.NonRecursive as FiltNR
+import qualified Synthesizer.Plain.Interpolation as Interpolation
+import qualified Synthesizer.Plain.Signal as Sig
+import           Synthesizer.Plain.Instrument
+          (fastBell, simpleSaw, moogGuitar, moogGuitarSoft, fmBell, )
+import qualified Sox.File
+
+import           Synthesizer.Utility(mapSnd)
+
+import qualified Data.List as List
+
+import System.Exit(ExitCode)
+
+
+
+stringFreqs :: [Time]
+stringFreqs =
+   map (\p -> Pitch.intToFreq (Pitch.toInt p) / 48000) stringPitches
+
+
+sampleSong :: RhyMusic.T () Int
+sampleSong = parallelSong [0 .. 5]
+
+synthSong :: StdMusic.T
+synthSong =
+   StdMusic.transpose 12 (parallelSong (repeat "moogguitarsoft"))
+
+
+
+----------- Configuration of the player -----------
+
+type IMap instr = InstrMap.InstrumentTable Time Volume instr
+
+guitarToSignal :: Time -> Sig.T Volume -> InstrMap.Instrument Time Volume
+guitarToSignal stringFreq sound sampleRate freq =
+   Interpolation.multiRelativeZeroPadConstant 0
+      (repeat (freq/sampleRate / stringFreq)) sound
+
+sampleMap :: [Sig.T Volume] -> IMap Int
+sampleMap samples =
+   zipWith3 (\chr stringFreq sound ->
+               (chr, guitarToSignal stringFreq sound))
+            [0 ..] stringFreqs samples
+
+synthMap :: IMap StdMusic.Instr
+synthMap = map (mapSnd (MusicSignal.amplify (1/5::Volume)))
+  [("guitar",         (\sampleRate freq -> guitar (freq/sampleRate))),
+   ("bell",           fastBell),
+   ("string",         simpleSaw),
+   ("moogguitar",     moogGuitar),
+   ("moogguitarsoft", moogGuitarSoft),
+   ("fmguitar",       (\sampleRate -> fmBell sampleRate 0.4 3.003))]
+
+computeSignal :: (Ord drum, Ord instr) =>
+   RhyMusic.T drum instr -> IMap instr ->
+                    Time -> Sig.T (Volume,Volume)
+computeSignal music instrMap sampleRate =
+   let channel dif =
+          MusicSignal.fromRhythmicMusic sampleRate
+             (MusicSignal.detuneInstrs dif instrMap)
+             FancyPf.map
+             (MusicSignal.contextMetro 60 qn)
+             music
+   in  zip (channel 1.001) (channel 0.999)
+
+readSamples :: IO [Sig.T Volume]
+readSamples =
+   do sampledSounds <- mapM Sox.File.readAIFFMono
+             (map (\chr -> "guitar/Zupf/Zupf"++chr:".aiff") ['0'..'5'])
+      return (zipWith FiltNR.amplifyVector
+                      [0.5,0.5,0.5,0.5,0.5,0.3::Volume]
+                      sampledSounds)
+
+main :: IO ExitCode
+main =
+   do
+     Sox.File.renderStereo "Guitar" 44100 . computeSignal sampleSong . sampleMap
+        =<< readSamples
+     Sox.File.renderStereo "GuitarSynth" 44100 (computeSignal synthSong synthMap)
diff --git a/src/Haskore/Interface/Signal/Example/SwanLake.hs b/src/Haskore/Interface/Signal/Example/SwanLake.hs
new file mode 100644
--- /dev/null
+++ b/src/Haskore/Interface/Signal/Example/SwanLake.hs
@@ -0,0 +1,124 @@
+{-# OPTIONS -fno-implicit-prelude #-}
+module Haskore.Interface.Signal.Example.SwanLake where
+
+import qualified Synthesizer.Plain.Filter.NonRecursive as FiltNR
+import qualified Synthesizer.Plain.Filter.Recursive.Moog as Moog
+import qualified Synthesizer.Plain.Signal as Sig
+import Synthesizer.Plain.Filter.Recursive (Pole(Pole))
+import Synthesizer.Plain.Control(exponential2)
+import Synthesizer.Plain.Instrument (simpleSaw)
+import qualified Sox.File
+
+import qualified Number.Ratio as Ratio
+import qualified Algebra.Transcendental      as Trans
+import qualified Algebra.Field               as Field
+import qualified Algebra.Ring                as Ring
+
+-- import qualified Haskore.Music as Music
+import           Haskore.Music.Standard  as StdMusic
+import           Haskore.Melody.Standard as StdMelody
+import qualified Haskore.Performance.Fancy as FancyPf
+import qualified Haskore.Interface.Signal.Write as MusicSignal
+import Haskore.Interface.Signal.Write(Time,Volume)
+
+import Data.Accessor.Basic as Accessor
+
+import System.Exit(ExitCode)
+
+import PreludeBase
+import NumericPrelude
+
+
+------------ The song description -------------
+
+
+-- Comfortable creation of chords of notes of the same length
+chordDur :: t -> [t -> NoteAttributes -> StdMelody.T] -> StdMelody.T
+chordDur dr chd =
+   chord $
+      zipWith
+         (\n v -> n dr (Accessor.set StdMelody.velocity1 (Ratio.toRational98 v) na))
+         chd [1,0.3,0.3,0.3]
+
+chords :: StdMelody.T
+chords = transpose 12 (line
+               [chordDur  wn [a (-3), e  0, a  0, c  1],
+                chordDur  wn [d (-2), f  0, a  0, d  1],
+                chordDur  wn [a (-2), e  0, a  0, c  1],
+                chordDur  wn [gs(-2), e  0, a  0, c  1],
+                chordDur  wn [g (-2), e  0, a  0, c  1],
+                chordDur  hn [d (-2), f  0, a  0, d  1],
+                chordDur  hn [f (-3), f  0, a  0, c  1],
+                chordDur  wn [a (-3), e  0, a  0, c  1]  ])
+
+makeMelody :: [NoteAttributes -> StdMelody.T] -> StdMelody.T
+makeMelody mel = transpose 24 (line (map ($ na) mel))
+
+melody :: StdMelody.T
+melody  = makeMelody [e 1  wn,
+                      a 0  qn, b 0 qn, c 1 qn, d 1 qn,
+                      e 1 dhn, c 1 qn,
+                      e 1 dhn, c 1 qn,
+                      e 1 dhn, a 0 qn,
+                      c 1  qn, a 0 qn, f 0 qn, c 1 qn,
+                      a 0  wn]
+
+----------- Configuration of the player -----------
+
+
+defltSampleRate :: Ring.C a => a
+defltSampleRate = 44100
+
+-- Volume type arises from Haskore
+songToSignalMono :: Volume -> StdMelody.T -> Sig.T Volume
+songToSignalMono dif song =
+    MusicSignal.fromRhythmicMusic
+       defltSampleRate
+       (MusicSignal.detuneInstrs dif
+           [("string", MusicSignal.amplify (0.5::Volume) simpleSaw)])
+       FancyPf.map
+       (MusicSignal.contextMetro 120 qn)
+       (StdMusic.fromStdMelody "string" song)
+
+songSignal :: Volume -> Sig.T Volume
+songSignal dif = songToSignalMono dif chords
+
+
+
+
+polarisator :: Trans.C a => a -> a -> [Pole a]
+polarisator sampleRate freq =
+   map (flip Pole (freq/sampleRate))
+       (exponential2 (0.5*sampleRate) 100)
+
+filterSignal :: Time -> [Pole Volume]
+filterSignal dif =
+   -- we must remove gaps because a pole frequency 0 let most filters crash
+   -- hope that the signal doesn't become too short ...
+   filter (/= Pole 0 0)
+       (MusicSignal.fromRhythmicMusic
+           defltSampleRate
+           (MusicSignal.detuneInstrs dif [("filter", polarisator)])
+           FancyPf.map
+           (MusicSignal.contextMetro 120 qn)
+           (StdMusic.fromStdMelody "filter" melody))
+
+
+filteredSignal :: Volume -> Sig.T Volume
+filteredSignal dif = FiltNR.amplifyVector (0.1::Volume)
+    (Moog.lowpass 10
+        (map (Moog.parameter 10) (filterSignal 1))
+        (songSignal (1/dif)))
+{-
+filteredSignal dif =
+   map (\(_,_,x) -> 0.1*x)
+       (uniFilter (map uniFilterParam filterSignal)
+                   songSignal)
+-}
+
+stereoSignal :: Sig.T (Volume,Volume)
+stereoSignal = zip (filteredSignal 1.002)
+                   (filteredSignal 0.998)
+
+main :: IO ExitCode
+main = Sox.File.writeStereo "SwanLake" defltSampleRate stereoSignal
diff --git a/src/Haskore/Interface/Signal/Example/WinterAde.hs b/src/Haskore/Interface/Signal/Example/WinterAde.hs
new file mode 100644
--- /dev/null
+++ b/src/Haskore/Interface/Signal/Example/WinterAde.hs
@@ -0,0 +1,286 @@
+{-# OPTIONS -fno-implicit-prelude #-}
+module Haskore.Interface.Signal.Example.WinterAde where
+
+import qualified Synthesizer.Plain.Filter.Recursive.Comb as Comb
+import qualified Synthesizer.Plain.Signal as Sig
+
+import qualified Haskore.Interface.Signal.InstrumentMap as InstrMap
+import qualified Haskore.Interface.Signal.Write as MusicSignal
+import Haskore.Interface.Signal.Write(NonNegTime, Time, Volume)
+
+import           Haskore.Melody.Standard as StdMelody
+import qualified Haskore.Music           as Music
+import           Haskore.Music.Rhythmic  as RhyMusic
+import qualified Haskore.Performance.Fancy as FancyPf
+import qualified Haskore.Performance.Context as Context
+import qualified Haskore.Basic.Duration  as Dur
+
+import qualified Algebra.Field              as Field
+import qualified Algebra.Ring               as Ring
+
+import Synthesizer.Plain.Displacement (mix)
+import Synthesizer.Plain.Filter.NonRecursive (fadeInOut)
+import Synthesizer.Plain.Instrument (bell, squareBell, fatSaw, filterSweep, )
+import qualified Sox.File
+
+import System.Exit(ExitCode)
+
+import PreludeBase
+import NumericPrelude
+
+-- import qualified Prelude as P
+
+
+------------ The song description -------------
+
+melody0, melody1,
+ partA, partB, partC0, partC1,
+ partD0, partD1, partE0, partE1,
+ bassLine0, bassLine1, chordPad
+   :: StdMelody.T
+
+
+-- Melody:
+melody0 = Music.transpose 12 (line [partA, partA, partB, partC0, partD0, partE0])
+melody1 = Music.transpose 12 (line [partA, partA, partB, partC1, partD1, partE1])
+
+-- Easily create a chord of note of the same length
+chordDur :: t -> [t -> NoteAttributes -> StdMelody.T] -> StdMelody.T
+chordDur dr chd = chord (map (\n -> n dr na) chd)
+
+partA  = line [chordDur  qn [g  0, c  1, e  1],
+               chordDur  qn [g  0, c  1, e  1],
+               chordDur  qn [g  0, b  0, d  1],
+               chordDur dhn [e  0, g  0, c  1]  ]
+
+partB  = line [chordDur  qn [g  0, c  1, e  1],
+               chordDur  qn [g  0, d  1, f  1],
+               chordDur  qn [g  0, e  1, g  1],
+               chordDur  qn [a  0, d  1, g  1],
+               chordDur  en [a  0, d  1, f  1],
+               chordDur  en [a  0, d  1, e  1],
+               chordDur  qn [a  0, c  1, f  1]  ]
+
+partC0 = line [chordDur  qn [g  0, b  0, d  1],
+               chordDur  qn [g  0, c  1, e  1],
+               chordDur  qn [g  0, d  1, f  1],
+               chordDur  qn [g  0, c  1, f  1],
+               chordDur  en [g  0, c  1, e  1],
+               chordDur  en [g  0, c  1, d  1],
+               chordDur  qn [g  0, b  0, e  1]  ]
+
+partC1 = line [chordDur  qn [g  0, b  0, d  1],
+               chordDur  qn [g  0, c  1, e  1],
+               chordDur  qn [g  0, d  1, f  1],
+               chordDur  qn [gs 0, d  1, f  1],
+               chordDur  en [gs 0, c  1, e  1],
+               chordDur  en [gs 0, c  1, d  1],
+               chordDur  qn [a  0, c  1, e  1]  ]
+
+partD0 = line [chordDur  qn [a  0, c  1, e  1],
+               chordDur  qn [a  0, c  1, e  1],
+               chordDur  qn [g  0, d  1, f  1],
+               chordDur dhn [g  0, c  1, g  1]  ]
+
+partD1 = line [chordDur  qn [g  0, c  1, e  1],
+               chordDur  qn [g  0, c  1, e  1],
+               chordDur  qn [a  0, c  1, f  1],
+               chordDur dhn [c  1, e  1, g  1]  ]
+
+partE0 = line [chordDur  qn [f  0, a  0, e  1],
+               chordDur  qn [f  0, a  0, e  1],
+               chordDur  qn [g  0, b  0, d  1],
+               chordDur dhn [e  0, g  0, c  1]  ]
+
+partE1 = line [chordDur  qn [fs 0, a  0, e  1],
+               chordDur  qn [fs 0, a  0, e  1],
+               chordDur  qn [g  0, b  0, d  1],
+               chordDur dwn [e  0, g  0, c  1]  ]
+
+
+-- Bass:
+
+
+{- was intended for simplifying the creation of the bass line
+   but sounds awful here
+
+bassPattern = [(0,en),(1,en),(2,en),(1,en),(3,en),(1,en),
+               (0,en),(1,en),(4,en),(1,en),(3,en),(1,en)]
+
+bassLine x = transpose (-24) (RhyMusic.fromStdMelody "bass" (line (chordPattern (cycle bassPattern) 0 x)))
+
+bassLine0 = bassLine (bassAAB ++ bassC0 ++ bassDE)
+bassLine1 = bassLine (bassAAB ++ bassC1 ++ bassDE)
+
+bassAAB  =    [([(0, C),(0, G),(1, C),(1, D),(1, E)],15*qn),
+               ([(0, D),(0, A),(1, D),(1, E),(1, F)], 3*qn) ]
+
+bassC0   =    [([(0, D),(0, G),(1, D),(1, E),(1, F)], 3*qn),
+               ([(0, E),(0, G),(1, E),(1, F),(1, G)], 2*qn),
+               ([(0, E),(0, B),(1, E),(1, F),(1, G)],   qn) ]
+
+bassC1   =    [([(0, D),(0, G),(1, D),(1, E),(1, F)], 3*qn),
+               ([(0, E),(0,Gs),(1, E),(1, F),(1,Gs)], 2*qn),
+               ([(0, E),(0, A),(1, E),(1, F),(1, G)],   qn) ]
+
+bassDE   =    [([(0, E),(0, G),(1, C),(1, D),(1, E)], 2*qn),
+               ([(0, C),(0, F),(1, C),(1, D),(1, E)],   qn),
+               ([(0, C),(0, G),(1, C),(1, D),(1, E)], 3*qn),
+               ([(0, C),(0, F),(1, C),(1, D),(1, E)], 2*qn),
+               ([(0, D),(0, G),(1, D),(1, E),(1, F)],   qn),
+               ([(0, C),(0, G),(1, C),(1, D),(1, E)], 3*qn) ]
+
+chordPattern :: [(Int,Dur)] -> Dur -> [([Pitch], Dur)] -> [StdMelody.T]
+chordPattern _ _ [] = []
+chordPattern p@((patnote,patdur):pats) chordplayed c@((chordpitchs,chordDur):chords) =
+    if   chordplayed >= chordDur
+    then chordPattern p (chordplayed-chordDur) chords
+    else (Note (chordpitchs!!patnote) patdur []):(chordPattern pats (chordplayed+patdur) c)
+-}
+
+bassLine :: [Dur -> NoteAttributes -> StdMelody.T] -> StdMelody.T
+bassLine x =
+   Music.transpose (-12) (line (map (\n -> n en na) x))
+
+bassLine0 = bassLine (bassA ++ bassA ++ bassB ++ bassC0 ++ bassD0 ++ bassE0)
+bassLine1 = bassLine (bassA ++ bassA ++ bassB ++ bassC1 ++ bassD1 ++ bassE1)
+
+
+bassA, bassB, bassC0, bassD0, bassE0,
+ bassC1, bassD1, bassE1 :: [Dur -> NoteAttributes -> StdMelody.T]
+
+bassA  = [c  0, g  0, c  1, g  0, d  1, g  0,
+          c  0, g  0, e  1, g  0, d  1, g  0 ]
+
+bassB  = [c  0, g  0, c  1, g  0, e  1, g  0,
+          d  0, a  0, d  1, a  0, f  1, a  0 ]
+
+bassC0 = [d  0, g  0, d  1, g  0, f  1, g  0,
+          c  0, g  0, c  1, g  0, b  0, g  0 ]
+
+bassD0 = [e  0, a  0, e  1, a  0, g  0, d  1,
+          c  0, g  0, c  1, g  0, g  1, c  1 ]
+
+bassE0 = [c  0, f  0, c  1, f  0, d  0, d  1,
+          c  0, g  0, c  1, g  0, d  1, g  0 ]
+
+bassC1 = [d  0, g  0, d  1, g  0, f  1, g  0,
+          e  0, gs 0, e  1, gs 0, e  1, a  0 ]
+
+bassD1 = [c  0, g  0, c  1, g  0, d  1, g  0,
+          c  0, g  0, e  1, g  0, d  1, g  0 ]
+
+bassE1 = [d  0, fs 0, d  1, fs 0, d  1, g  0,
+          c  0, g  0, c  1, g  0, d  1, g  0 ]
+
+
+-- Chord pad:
+chordPad = Music.transpose (-12) (
+           line [chordDur (15*qn) [g  0, c  1, e  1],
+                 chordDur ( 2*qn) [a  0, d  1, f  1],
+                 chordDur (   qn) [a  0, c  1, f  1],
+                 chordDur ( 3*qn) [b  0, d  1, g  1],
+                 chordDur ( 2*qn) [b  0, e  1, gs 1],
+                 chordDur (   qn) [c  1, e  1, a  1],
+                 chordDur ( 2*qn) [g  0, c  1, e  1],
+                 chordDur (   qn) [a  0, c  1, f  1],
+                 chordDur ( 3*qn) [c  1, e  1, g  1],
+                 chordDur ( 2*qn) [fs 0, a  0, e  1],
+                 chordDur (   qn) [g  0, b  0, d  1],
+                 chordDur ( 6*qn) [e  0, g  0, c  1] ] )
+
+
+
+----------- Configuration of the player -----------
+
+data Instrument =
+     Bell
+   | Bass
+   | Pad
+      deriving (Eq, Ord)
+
+type Music = RhyMusic.T () Instrument
+
+
+context :: Context.T NonNegTime Volume (RhyMusic.Note () Instrument)
+context = MusicSignal.contextMetro 120 qn
+
+
+instrMap :: InstrMap.InstrumentTable Time Volume Instrument
+instrMap =
+   [(Bell, MusicSignal.amplify (0.2::Volume) bell      ),
+    (Bass, MusicSignal.amplify (0.2::Volume) squareBell),
+    (Pad,  MusicSignal.amplify (0.2::Volume) fatSaw    )]
+
+
+
+
+--------- Create signals for the parts, apply effects, put them together -------
+
+defltSampleRate :: Ring.C a => a
+defltSampleRate = 11025
+
+-- Volume type arises from Haskore
+songToSignalMono :: Time -> Music -> Sig.T Volume
+songToSignalMono dif song =
+   MusicSignal.fromRhythmicMusic defltSampleRate
+      (MusicSignal.detuneInstrs dif instrMap)
+      FancyPf.map
+      context
+      song
+
+songToSignalStereo :: Time -> Music -> Sig.T (Volume,Volume)
+songToSignalStereo det song =
+   zip (songToSignalMono (1-det) song)
+       (songToSignalMono (1+det) song)
+
+melodySignal :: StdMelody.T -> Sig.T (Volume,Volume)
+melodySignal mel =
+   let (musr, musl) = unzip (songToSignalStereo 0.001
+                               (RhyMusic.fromStdMelody Bell mel))
+   in  zip (Comb.run (round (0.19*defltSampleRate :: Time)) (0.4::Volume) musl)
+           (Comb.run (round (0.23*defltSampleRate :: Time)) (0.5::Volume) musr)
+
+melodySignal0, melodySignal1 :: Sig.T (Volume,Volume)
+melodySignal0 = melodySignal melody0
+melodySignal1 = melodySignal melody1
+
+
+durToSampleNum :: Music.Dur -> Int
+durToSampleNum dr =
+   round (defltSampleRate * Context.getDur context * Dur.toNumber dr)
+
+
+fadeChord :: Field.C a => [a] -> [a]
+fadeChord =
+   fadeInOut
+      (durToSampleNum (2 * dhn))
+      (durToSampleNum (Music.dur chordPad - 4 * dhn))
+      (durToSampleNum (2 * dhn))
+
+chordSignal :: Sig.T (Volume,Volume)
+chordSignal =
+   let (musr, musl) = unzip (songToSignalStereo 0.005
+                               (RhyMusic.fromStdMelody Pad chordPad))
+       filt phase mus = filterSweep defltSampleRate phase (fadeChord mus)
+   in  zip (filt (0.7::Volume) musl)
+           (filt (0.8::Volume) musr)
+
+
+bassSignal :: StdMelody.T -> Sig.T (Volume,Volume)
+bassSignal mel =
+   songToSignalStereo 0.005 (RhyMusic.fromStdMelody Bass mel)
+
+bassSignal0, bassSignal1 :: Sig.T (Volume,Volume)
+bassSignal0 = bassSignal bassLine0
+bassSignal1 = bassSignal bassLine1
+
+
+songSignal :: Sig.T (Volume,Volume)
+songSignal =
+   foldl1 mix [melodySignal0, bassSignal0] ++
+   foldl1 mix [melodySignal1, bassSignal1, chordSignal]
+
+
+main :: IO ExitCode
+main = Sox.File.writeStereo "WinterAde" defltSampleRate songSignal
diff --git a/src/Haskore/Interface/Signal/InstrumentMap.hs b/src/Haskore/Interface/Signal/InstrumentMap.hs
new file mode 100644
--- /dev/null
+++ b/src/Haskore/Interface/Signal/InstrumentMap.hs
@@ -0,0 +1,30 @@
+
+module Haskore.Interface.Signal.InstrumentMap where
+
+import qualified Synthesizer.Plain.Signal as Sig
+
+import Data.Maybe(fromMaybe)
+import qualified Data.List as List
+
+
+
+type InstrumentTable time v instr =
+   [(instr, Instrument time v)]
+
+type DrumTable time v instr =
+   [(instr, Drum time v)]
+
+type ToInstrument time v instr =
+   instr -> Instrument time v
+
+type ToDrum time v instr =
+   instr -> Drum time v
+
+type Instrument time v = time -> time -> Sig.T v
+type Drum       time v = time -> Sig.T v
+
+
+lookup :: Eq instr => [(instr, a)] -> instr -> a
+lookup ys x =
+   fromMaybe (error "Signal.InstrumentMap.lookup: Instrument unknown")
+             (List.lookup x ys)
diff --git a/src/Haskore/Interface/Signal/Note.hs b/src/Haskore/Interface/Signal/Note.hs
new file mode 100644
--- /dev/null
+++ b/src/Haskore/Interface/Signal/Note.hs
@@ -0,0 +1,59 @@
+{-# OPTIONS -fglasgow-exts -fno-implicit-prelude #-}
+module Haskore.Interface.Signal.Note where
+
+import qualified Haskore.Interface.Signal.InstrumentMap as InstrMap
+
+import qualified Haskore.Music.Rhythmic               as RhyMusic
+import qualified Haskore.Basic.Pitch                  as Pitch
+
+import qualified Synthesizer.Plain.Signal as Sig
+
+-- import qualified Algebra.Transcendental as Trans
+import qualified Algebra.Module         as Module
+import qualified Algebra.RealField      as RealField
+import qualified Algebra.Additive       as Additive
+import Algebra.Module((*>))
+
+-- import PreludeBase
+import NumericPrelude as NP
+
+import qualified Prelude as P
+
+newtype T time v = Cons {toSignal :: time -> Sig.T v}
+
+{- |
+tone signal renderer with parameters:
+dynamics, transposition,
+the note body (instrument, pitch, attributes)
+-}
+type FromNote time dyn v note =
+           dyn   {- dynamics -}
+        -> Pitch.Relative
+                 {- transposition -}
+        -> note  {- the note body containing instrument, pitch, attributes -}
+        -> T time v
+
+
+fromRhythmicNote ::
+   (P.Floating time, RealField.C dyn, Module.C dyn v) =>
+   InstrMap.ToDrum       time v drum ->
+   InstrMap.ToInstrument time v instr ->
+   FromNote time dyn v (RhyMusic.Note drum instr)
+fromRhythmicNote dMap iMap dyn trans (RhyMusic.Note vel body) =
+   -- for standard sounds we interpret the velocity simply as volume
+   let velSig = velocityFromStd dyn vel
+   in  case body of
+          RhyMusic.Tone instr p ->
+             Cons (\sampleRate -> velSig *>
+                       iMap instr sampleRate (pitchFromStd trans p))
+          RhyMusic.Drum drum ->
+             Cons (\sampleRate -> velSig *> dMap drum sampleRate)
+
+velocityFromStd :: RealField.C dyn =>
+   dyn -> P.Rational -> dyn
+velocityFromStd dyn vel = dyn * fromRational vel
+
+pitchFromStd :: (P.Floating time) =>
+   Pitch.Relative -> Pitch.T -> time
+pitchFromStd trans p =
+   Pitch.intToFreq (trans + Pitch.toInt p)
diff --git a/src/Haskore/Interface/Signal/Write.hs b/src/Haskore/Interface/Signal/Write.hs
new file mode 100644
--- /dev/null
+++ b/src/Haskore/Interface/Signal/Write.hs
@@ -0,0 +1,151 @@
+{-# OPTIONS -fglasgow-exts -fno-implicit-prelude #-}
+module Haskore.Interface.Signal.Write where
+
+{-
+What does the MIDI volume mean?
+First one must distinguish between the velocity
+(this is the force when playing)
+and the volume.
+The meaning of velocity depends on the instrument.
+
+By digitizing sounds from the Yamaha SY-35
+I found out that an increase of the MIDI volume by 16
+doubles the amplitude, i.e. 16 steps correspond to 3 dB.
+-}
+
+import qualified Haskore.Interface.Signal.InstrumentMap as InstrMap
+import qualified Haskore.Interface.Signal.Note as Note
+
+import qualified Haskore.Music          as Music
+import qualified Haskore.Music.Rhythmic as RhyMusic
+import qualified Haskore.Performance as Performance
+import qualified Haskore.Performance.Player  as Player
+import qualified Haskore.Performance.Context as Context
+import qualified Haskore.Performance.BackEnd as PerformanceBE
+import qualified Haskore.Performance.Default as DefltPf
+-- import qualified Haskore.Basic.Pitch as Pitch
+import qualified Haskore.Basic.Tempo as Tempo
+
+import qualified Data.EventList.Relative.TimeBody as EventList
+-- import qualified Numeric.NonNegative.Class   as NonNeg
+import qualified Number.NonNegative as NonNegW
+
+import qualified Synthesizer.Plain.Signal as Sig
+import qualified Synthesizer.Plain.Cut as Cut
+import           Synthesizer.Utility(mapSnd)
+
+import qualified Algebra.Module    as Module
+import qualified Algebra.RealField as RealField
+import qualified Algebra.Ring      as Ring
+import qualified Algebra.Additive  as Additive
+import Algebra.Module((*>))
+
+import PreludeBase
+import NumericPrelude
+
+import Prelude (RealFrac, Fractional, Floating, )
+
+
+
+type Time   = Double
+type Volume = Double
+type NonNegTime = NonNegW.Double
+
+
+
+{- | Convert a standard music into a list of numeric values
+     that represent a mono or stereo audio signal. -}
+fromRhythmicMusic ::
+   (RealFrac time, Floating time, RealField.C time,
+    Module.C dyn v, Fractional dyn, RealField.C dyn,
+    Ord instr, Ord drum) =>
+      time
+   -> InstrMap.InstrumentTable time v instr
+   -> (Player.Name -> Player.T (NonNegW.T time) dyn (RhyMusic.Note drum instr))
+   -> Context.T (NonNegW.T time) dyn (RhyMusic.Note drum instr)
+   -> RhyMusic.T drum instr
+   -> Sig.T v
+fromRhythmicMusic sampleRate instrMap =
+   fromMusic sampleRate
+      (Note.fromRhythmicNote undefined (InstrMap.lookup instrMap))
+
+
+{- | Convert a generic music into an audio signal. -}
+fromMusic ::
+   (RealFrac time, Floating time, RealField.C time,
+    Additive.C v, Ord dyn, Fractional dyn,
+    Ord note) =>
+      time
+   -> Note.FromNote time dyn v note
+   -> (Player.Name -> Player.T (NonNegW.T time) dyn note)
+   -> Context.T (NonNegW.T time) dyn note
+   -> Music.T note
+   -> Sig.T v
+fromMusic sampleRate noteMap pMap con =
+   fromPerformance sampleRate noteMap .
+      Performance.fromMusic pMap con
+
+
+fromPerformance ::
+   (RealFrac time, Floating time, RealField.C time,
+    Additive.C v,
+    Ord note) =>
+      time
+   -> Note.FromNote time dyn v note
+   -> Performance.T (NonNegW.T time) dyn note
+   -> Sig.T v
+fromPerformance sampleRate noteMap =
+   Cut.arrange .
+   EventList.resample
+      (NonNegW.fromNumberMsg "Signal.Write.fromPerformance" sampleRate) .
+   EventList.mapBody (eventToPiece sampleRate) .
+   PerformanceBE.fromPerformance noteMap
+
+
+{- | Convert a generic note the sound of a single tone. -}
+eventToPiece ::
+   (RealFrac time, Floating time,
+    RealField.C time) =>
+      time
+   -> PerformanceBE.Event (NonNegW.T time) (Note.T time v)
+   -> Sig.T v
+eventToPiece sampleRate event =
+   let dur   = PerformanceBE.eventDur  event
+       sound = PerformanceBE.eventNote event
+   in  take
+          (round (sampleRate * NonNegW.toNumber dur))
+          (Note.toSignal sound sampleRate)
+
+{- | can be used to turn an instrument mapper -}
+detuneTone :: Ring.C time =>
+      time
+   -> (time -> time -> Sig.T v)
+   -> (time -> time -> Sig.T v)
+detuneTone detune noteToSignal =
+   \ sampleRate freq ->
+        noteToSignal sampleRate (freq * detune)
+
+detuneInstrs :: Ring.C time =>
+      time
+   -> [(name, time -> time -> Sig.T v)]
+   -> [(name, time -> time -> Sig.T v)]
+detuneInstrs detune = map (mapSnd (detuneTone detune))
+
+amplify :: Module.C a v =>
+   a ->
+   (time -> time -> Sig.T v) ->
+   (time -> time -> Sig.T v)
+amplify v sig sampleRate freq = map (v*>) (sig sampleRate freq)
+
+{-
+nonNegTimeInstr ::
+   (time -> time -> Sig.T v) -> (NonNegW.T time -> NonNegW.T time -> Sig.T v)
+nonNegTimeInstr f sampleRate freq =
+   f (NonNegW.toNumber sampleRate) (NonNegW.toNumber freq)
+-}
+
+
+contextMetro :: Time -> Music.Dur -> Context.T NonNegTime Volume note
+contextMetro setting dur =
+   Context.setDur (Tempo.metro (NonNegW.fromNumberMsg "Signal.Write.contextMetro" setting) dur) $
+   DefltPf.context
diff --git a/src/RenderSong.hs b/src/RenderSong.hs
new file mode 100644
--- /dev/null
+++ b/src/RenderSong.hs
@@ -0,0 +1,6 @@
+module Main where
+
+import qualified Sox.Play
+import qualified Haskore.Interface.Signal.Example.WinterAde as Song
+
+main = Sox.Play.stereo 11025 Song.songSignal
