Had a good time with MuLab today!
Anyway, I noted something that might come in handy:
It seems ctrl-rewind (ff) and alt-rewind (ff) both move the Play cursor to the loop markers, added markers or start.
So as they do the same thing, I came up with the idea of changing the behavior for alt-rewind (and ff): go to nearest starting part on the selected track.
I think this makes sense. Let's say I worked at a piano part late in the song, at bar 104, and now want to work at one piano part earlier in the song, starting at bar 48. Alt-rewind steps back one piano part at a time, until it comes to bar 48 and I press Space to play.
(If there is no earlier part, I suppose it would go to zero.)
