diff --git a/src/Synthesizer/Dimensional/Causal/Filter.hs b/src/Synthesizer/Dimensional/Causal/Filter.hs
--- a/src/Synthesizer/Dimensional/Causal/Filter.hs
+++ b/src/Synthesizer/Dimensional/Causal/Filter.hs
@@ -59,7 +59,7 @@
 import qualified Synthesizer.Dimensional.Amplitude as Amp
 import qualified Synthesizer.Dimensional.Causal.Process as CausalD
 import qualified Synthesizer.Causal.Process as Causal
-import Control.Arrow (Arrow, (^<<), (&&&), )
+import Control.Arrow ((^<<), (&&&), )
 
 import Synthesizer.Dimensional.Process (DimensionGradient, )
 
diff --git a/src/Synthesizer/Dimensional/Causal/Process.hs b/src/Synthesizer/Dimensional/Causal/Process.hs
--- a/src/Synthesizer/Dimensional/Causal/Process.hs
+++ b/src/Synthesizer/Dimensional/Causal/Process.hs
@@ -1,6 +1,7 @@
 {-# LANGUAGE MultiParamTypeClasses #-}
 {-# LANGUAGE FlexibleContexts #-}
 {-# LANGUAGE GeneralizedNewtypeDeriving #-}
+{-# LANGUAGE StandaloneDeriving #-}
 module Synthesizer.Dimensional.Causal.Process (
    module Synthesizer.Dimensional.Causal.Process,
 
@@ -63,7 +64,9 @@
 
 newtype Core s yv0 yv1 =
    Core (Causal.T yv0 yv1)
-   deriving (Category, Arrow, ArrowLoop, CausalArrow.C)
+   deriving (Arrow, ArrowLoop, CausalArrow.C)
+
+deriving instance Category (Core s)
 
 instance ArrowD.Applicable (Core s) (Rate.Phantom s)
 
diff --git a/src/Synthesizer/Dimensional/Rate/Oscillator.hs b/src/Synthesizer/Dimensional/Rate/Oscillator.hs
--- a/src/Synthesizer/Dimensional/Rate/Oscillator.hs
+++ b/src/Synthesizer/Dimensional/Rate/Oscillator.hs
@@ -49,8 +49,6 @@
 -- import qualified Synthesizer.Dimensional.Amplitude as Amp
 import qualified Synthesizer.Dimensional.Rate as Rate
 
-import qualified Synthesizer.Generic.Signal as SigG
-
 -- import qualified Synthesizer.Dimensional.Wave.Smoothed as WaveSmooth
 import qualified Synthesizer.Dimensional.Wave.Controlled as WaveCtrl
 import qualified Synthesizer.Dimensional.Wave as WaveD
@@ -267,8 +265,7 @@
 
 {-# INLINE shapeFreqModFromSampledTone #-}
 shapeFreqModFromSampledTone ::
-    (RealField.C t, SigG.Transform storage yv, Dim.C u,
-     Flat.C t flat) =>
+    (RealField.C t, Dim.C u, Flat.C t flat) =>
       Interpolation.T t yv
    -> Interpolation.T t yv
    -> DN.T (Dim.Recip u) t
@@ -297,8 +294,7 @@
 
 {-# INLINE shapePhaseFreqModFromSampledTone #-}
 shapePhaseFreqModFromSampledTone ::
-    (RealField.C t, SigG.Transform storage yv, Dim.C u,
-     Flat.C t flatS, Flat.C t flatP) =>
+    (RealField.C t, Dim.C u, Flat.C t flatS, Flat.C t flatP) =>
       Interpolation.T t yv
    -> Interpolation.T t yv
    -> DN.T (Dim.Recip u) t
diff --git a/src/Synthesizer/Dimensional/RateAmplitude/Rain.hs b/src/Synthesizer/Dimensional/RateAmplitude/Rain.hs
--- a/src/Synthesizer/Dimensional/RateAmplitude/Rain.hs
+++ b/src/Synthesizer/Dimensional/RateAmplitude/Rain.hs
@@ -29,7 +29,7 @@
 import qualified Synthesizer.Dimensional.Signal as SigA
 
 import qualified Synthesizer.Dimensional.RateAmplitude.File as File
--- import qualified Synthesizer.Dimensional.RateAmplitude.Play as Play
+import qualified Synthesizer.Dimensional.RateAmplitude.Play as Play
 
 import Synthesizer.Dimensional.Signal ((&*^), (&*>^), )
 import Synthesizer.Dimensional.Process (($:), ($::), ($^), (.:), (.^), )
@@ -470,10 +470,11 @@
 user    12m7.389s
 sys     0m1.668s
 -}
-   File.renderTimeVoltageStereoDoubleToInt16
+   Play.renderTimeVoltageStereoDoubleToInt16
+--   File.renderTimeVoltageStereoDoubleToInt16
       (DN.frequency (44100::Double))
 --      "rain-long.aiff"
-      "rain-short.aiff"
+--      "rain-short.aiff"
       ((CutA.dropWhile (DN.voltage 1) (zero==) .^
         Cut.take
            ((2 * NonNeg.toNumber partTicks +
diff --git a/synthesizer-dimensional.cabal b/synthesizer-dimensional.cabal
--- a/synthesizer-dimensional.cabal
+++ b/synthesizer-dimensional.cabal
@@ -1,5 +1,5 @@
 Name:           synthesizer-dimensional
-Version:        0.7
+Version:        0.7.0.1
 License:        GPL
 License-File:   LICENSE
 Author:         Henning Thielemann <haskell@henning-thielemann.de>
@@ -32,13 +32,13 @@
   Location:    http://code.haskell.org/synthesizer/dimensional/
 
 Source-Repository this
-  Tag:         0.7
+  Tag:         0.7.0.1
   Type:        darcs
   Location:    http://code.haskell.org/synthesizer/dimensional/
 
 Library
   Build-Depends:
-    synthesizer-core >=0.6 && <0.7,
+    synthesizer-core >=0.6 && <0.8,
     transformers >=0.2 && <0.4,
     event-list >=0.1 && <0.2,
     non-negative >=0.1 && <0.2,