I started on this one and got sidetracked completely, so I thought I'd toss it
out if anyone has a chance to get to it before I do.
The click-to-select-all-notes-of-this-pitch and related functions on the
keyboard are broken because they're just not there. Signals like
keyboardClicked() (I think, something like that) have nowhere to go, because
the slots are missing. Slots probably go in MatrixScene, I'm thinking. I got
in here and noticed the highlight thing, and now I'm off on a totally
different track, and won't be back today.
D. Michael McIntyre