diff --git a/src/engine/engine.cpp b/src/engine/engine.cpp
index a62ae36e2..3177432cf 100644
--- a/src/engine/engine.cpp
+++ b/src/engine/engine.cpp
@@ -2059,7 +2059,7 @@ void DivEngine::autoNoteOn(int ch, int ins, int note, int vol) {
   }
 
   do {
-    if ((ins==-1 || ins>=song.insLen || getChannelType(finalChan)==4 || getPreferInsType(finalChan)==getIns(ins)->type || getIns(ins)->type==DIV_INS_AMIGA) && chan[finalChan].midiNote==-1) {
+    if ((ins==-1 || ins>=song.insLen || getPreferInsType(finalChan)==getIns(ins)->type || getPreferInsSecondType(finalChan)==getIns(ins)->type) && chan[finalChan].midiNote==-1) {
       chan[finalChan].midiNote=note;
       pendingNotes.push(DivNoteEvent(finalChan,ins,note,vol,true));
       break;
diff --git a/src/engine/engine.h b/src/engine/engine.h
index 4d12d3bbd..b36ee1403 100644
--- a/src/engine/engine.h
+++ b/src/engine/engine.h
@@ -523,6 +523,9 @@ class DivEngine {
     // get preferred instrument type
     DivInstrumentType getPreferInsType(int ch);
 
+    // get alternate instrument type
+    DivInstrumentType getPreferInsSecondType(int ch);
+
     // get song system name
     const char* getSongSystemName();