Comment #41 on issue 687 by [email protected]: Enhancement: inequal MIDI quantization of equal durations (swing, rubato)
http://code.google.com/p/lilypond/issues/detail?id=687
displacement of note boundaries rather than tweaking note durations
When I wrote the first version of the code, I didn't see any other option THAN scaling note durations. NoteEvents don't really know when they start or end, just how long they are and contain dynamic information etc.. If you want a note to start later, you scale the previous note or insert a rest, you don't change a note boundary..
Disclaimer: This is as far as I can tell, somebody please add more if I'm wrong !
So, if you're going to differentiate, scaling may well be the more correct description than displacement
