[depsypher]

Great idea! It may be a bit challenging to execute on that because currently it "snaps" to the note you're supposed to be playing, and given that even shifts of a centimeter or two will change the pitch to a different note, so it would require superhuman hand steadiness to play a real song.

A true trombone doesn't have the same issue because the entire range of playable notes isn't regulated by the slide, you change your lips to change the pitch. I'll think on this though. At very least it would be fun to have that mode to do a sad trombone womp womp sound.