diff --git a/src/Sound/SC3/MIDI/Keyboard.hs b/src/Sound/SC3/MIDI/Keyboard.hs
--- a/src/Sound/SC3/MIDI/Keyboard.hs
+++ b/src/Sound/SC3/MIDI/Keyboard.hs
@@ -52,7 +52,7 @@
 soundPing =
    sinOsc AR (2*frequency) 0 *
    xLine KR 1 0.1 1 PauseSynth *
-   0.15 * 4 ** control KR "Velocity" 0
+   control KR "Volume" 1 * 0.15 * 4 ** control KR "Velocity" 0
 
 programPing :: ProgramSound
 programPing = ProgramSound "Ping" soundPing 2
@@ -66,7 +66,9 @@
 soundString :: UGen
 soundString =
     let n = 5
-        volume = 0.2 * 4 ** control KR "Velocity" 0 / sqrt (fromIntegral n)
+        volume =
+           control KR "Volume" 1 * 0.2 *
+           4 ** control KR "Velocity" 0 / sqrt (fromIntegral n)
         detunes =
            normalizeLevel 1 $ take (2*n) $
               randomRs (0,0.03) $ mkStdGen 912
@@ -350,7 +352,7 @@
                                fromMaybe (return ()) $
                                   lookup ctrl $
                                   (VoiceMsg.mainVolume,
-                                     controlChange chan "Volume" id value) :
+                                     controlChange chan "Volume" ((/4) . (16**)) value) :
                                   (VoiceMsg.modulation,
                                      controlChange chan "Modulation" (*0.03) value) :
                                   []
diff --git a/src/Sound/SC3/MIDI/Utility.hs b/src/Sound/SC3/MIDI/Utility.hs
--- a/src/Sound/SC3/MIDI/Utility.hs
+++ b/src/Sound/SC3/MIDI/Utility.hs
@@ -35,4 +35,4 @@
 startMessage :: String
 startMessage =
    "use 'aconnect -i' to find out the ports from where note messages can be received\n" ++
-   "and connect the source with this program using 'aconnect' or 'patchage' or 'alsa-patch-bay'\n"
+   "and connect the source with this program using 'aconnect', 'kaconnect', 'patchage' or 'alsa-patch-bay'\n"
diff --git a/supercollider-midi.cabal b/supercollider-midi.cabal
--- a/supercollider-midi.cabal
+++ b/supercollider-midi.cabal
@@ -1,5 +1,5 @@
 Name:               supercollider-midi
-Version:            0.2
+Version:            0.2.1
 License:            GPL
 License-File:       LICENSE
 Author:             Henning Thielemann <haskell@henning-thielemann.de>
@@ -31,20 +31,20 @@
     opensoundcontrol-ht >=0.1 && <0.2,
     hsc3 >=0.8 && <0.9,
     hosc >=0.8 && <0.9,
-    alsa-seq >=0.5 && <0.6,
+    alsa-seq >=0.5 && <0.7,
     data-accessor >=0.2.1 && <0.3,
-    midi-alsa >=0.1.1 && <0.2,
-    midi >=0.1.4 && <0.2,
+    midi-alsa >=0.1.1 && <0.3,
+    midi >=0.1.4 && <0.3,
     event-list >=0.0.6 && <0.2,
     non-negative >=0.0.1 && <0.2,
     data-accessor-transformers >=0.2 && <0.3,
     data-accessor >=0.2 && <0.3,
-    transformers >=0.2 && <0.3,
+    transformers >=0.2 && <0.4,
     utility-ht >=0.0.5 && <0.1
 
   If flag(splitBase)
     Build-Depends:
-      array >=0.1 && <0.4,
+      array >=0.1 && <0.5,
       containers >=0.1 && <0.5,
       random >=1.0 && <2.0,
       base >=2 && <5
@@ -61,10 +61,10 @@
   Build-Depends:
     hsc3 >=0.8 && <0.9,
     hosc >=0.8 && <0.9,
-    alsa-seq >=0.5 && <0.6,
+    alsa-seq >=0.5 && <0.7,
     data-accessor >=0.2.1 && <0.3,
-    midi-alsa >=0.1.1 && <0.2,
-    midi >=0.1.4 && <0.2,
+    midi-alsa >=0.1.1 && <0.3,
+    midi >=0.1.4 && <0.3,
     event-list >=0.0.6 && <0.2,
     non-negative >=0.0.1 && <0.2