diff --git a/maquinitas-tidal.cabal b/maquinitas-tidal.cabal
--- a/maquinitas-tidal.cabal
+++ b/maquinitas-tidal.cabal
@@ -1,5 +1,5 @@
 name:                maquinitas-tidal
-version:             0.2.6
+version:             0.2.7
 synopsis:            library for MIDI control of hardware
 description:         maquinitas is a library for MIDI control of hardware
 homepage:            https://github.com/maquinitas/maquinitas-tidal
diff --git a/src/Korg/VolcaBeats.hs b/src/Korg/VolcaBeats.hs
--- a/src/Korg/VolcaBeats.hs
+++ b/src/Korg/VolcaBeats.hs
@@ -91,8 +91,8 @@
   -- ccn_num :: Pattern String -> ControlPattern
   ccn_num m =
     case m of
-      "aa" -> 1
-      "bb" -> 2
+      "kickLevel" -> 40
+      "snareLevel" -> 41
       "cc" -> 3
       "dd" -> 4
       _ -> 5