PasteBuffer holds copied music, and handles the action of pasting the music to
a different point in the score. It does this by serializing the measure(s) from the source
and then creating handling the overlap with existing music when deserializaing it.
PasteBuffer holds copied music, and handles the action of pasting the music to a different point in the score. It does this by serializing the measure(s) from the source and then creating handling the overlap with existing music when deserializaing it.