diff --git a/sample-frame-np.cabal b/sample-frame-np.cabal
--- a/sample-frame-np.cabal
+++ b/sample-frame-np.cabal
@@ -1,11 +1,10 @@
 Name:             sample-frame-np
-Version:          0.0.3.1
+Version:          0.0.4
 License:          BSD3
 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://code.haskell.org/~thielema/sample-frame/core/
 Category:         Sound
 Synopsis:         Orphan instances for types from sample-frame and numericprelude
 Description:
@@ -15,16 +14,25 @@
    saves you from conflicting instances.
    .
    This is used by packages @synthesizer@, @synthesizer-alsa@, @synthesizer-llvm@.
-Tested-With:       GHC==6.10.4
-Cabal-Version:     >=1.2
+Tested-With:       GHC==7.4.2
+Cabal-Version:     >=1.6
 Build-Type:        Simple
 
+Source-Repository this
+  Tag:         0.0.4
+  Type:        darcs
+  Location:    http://code.haskell.org/~thielema/sample-frame/numericprelude/
+
+Source-Repository head
+  Type:        darcs
+  Location:    http://code.haskell.org/~thielema/sample-frame/numericprelude/
+
 Flag splitBase
   description: Choose the new smaller, split-up base package.
 
 Library
   Build-Depends:
-    sample-frame >=0.0.2 && <0.1,
+    sample-frame >=0.0.3 && <0.1,
     numeric-prelude >= 0.2 && <0.5
   If flag(splitBase)
     Build-Depends:
diff --git a/src/Sound/Frame/NumericPrelude/Stereo.hs b/src/Sound/Frame/NumericPrelude/Stereo.hs
--- a/src/Sound/Frame/NumericPrelude/Stereo.hs
+++ b/src/Sound/Frame/NumericPrelude/Stereo.hs
@@ -1,8 +1,15 @@
 {-# LANGUAGE MultiParamTypeClasses #-}
 {-# LANGUAGE FlexibleInstances #-}
 {-# OPTIONS_GHC -fno-warn-orphans #-}
-module Sound.Frame.NumericPrelude.Stereo (T, left, right, cons, map, ) where
+module Sound.Frame.NumericPrelude.Stereo (
+   T, left, right, cons, map,
+   Stereo.Channel(Left, Right), Stereo.select,
+   Stereo.interleave,
+   Stereo.sequence,
+   Stereo.liftApplicative,
+   ) where
 
+import qualified Sound.Frame.Stereo as Stereo
 import Sound.Frame.Stereo (T, left, right, cons, map, )
 
 import qualified Algebra.NormedSpace.Maximum   as NormedMax