Hi Max
I have updated the user interface in the next version so that you can immediately see which instruments take how long with an indication next to the instrument:
For the future, I am thinking about a better solution like the one you propose...
Viewing post in More intuitive UI for long-playing instruments.
Awesome, that's still pretty nice.
This was originally going to be a bug report...but I did see that the notes eventually did finish.
One tricky thing is -- I think someday it'd be nice if consecutive notes could be joined into one successive note. The ways to represent that visually may conflict with what I proposed. Though, if a single-note instrument is stretched out to 4 notes, vs a four-note instrument is invoked once...maybe there doesn't need to be a difference, since they're kinda the same?