#midiflip code

[korwynkim]

Reformatted for readability
Edit: Added delete and undo fix

Code:

var p={};

for(i = 0; i < 72; i++){
   p[piano[i]] = piano[71 - i]
}
selectAll();

for(i = 0; i < selectedNotes.length; i++){
   n = selectedNotes[i];
   song.moveNote(n, n.instrument, n.instrument, n.time, n.time, n.type, p[n.type])
}

deleteSelection();
undoChange();