Need it to move much much slower till I am ready to go faster. In fact would be nice if there was an accellerator mode where after you get a few correct in a row it speeds up. This would add to the challenge and make it more game-like. A slider could determine the rate at which the accelleration increases.
Also in the timed game, there needs to be better feedback if you hit the right note. Best would be if the piano keyboard made no sound unless the correct note is played.
A beginner (me) might need a long time to figure out what the scrolling note is, so slow slow slow, maybe 10bpm!