diff --git a/MicroDexed.ino b/MicroDexed.ino
index 9ff7802..97f931d 100644
--- a/MicroDexed.ino
+++ b/MicroDexed.ino
@@ -350,7 +350,7 @@ void handleNoteOn(byte inChannel, byte inNumber, byte inVelocity)
 {
   if (checkMidiChannel(inChannel))
   {
-    dexed->keydown(inNumber, inVelocity);
+    dexed->keydown(inNumber+12, inVelocity);
   }
 }
 
@@ -358,7 +358,7 @@ void handleNoteOff(byte inChannel, byte inNumber, byte inVelocity)
 {
   if (checkMidiChannel(inChannel))
   {
-    dexed->keyup(inNumber);
+    dexed->keyup(inNumber+12);
   }
 }
 
diff --git a/config.h b/config.h
index be81ff4..c93d505 100644
--- a/config.h
+++ b/config.h
@@ -59,7 +59,7 @@
 //*************************************************************************************************
 //* DEXED AND EFECTS SETTINGS
 //*************************************************************************************************
-#define DEXED_ENGINE DEXED_ENGINE_MODERN # DEXED_ENGINE_MARKI // DEXED_ENGINE_OPL
+#define DEXED_ENGINE DEXED_ENGINE_MODERN // DEXED_ENGINE_MARKI // DEXED_ENGINE_OPL
 
 // EFFECTS
 #define FILTER_MAX_FREQ 10000