Also, can anyone on iOS share their experiences with Master difficulty? The game has trouble recognizing my taps or something, and it's extremely frustrating when all that stamina goes to waste. Not sure if anyone else has suffered from this problem.
EDIT: Adjusting the speed definitely increases accuracy tenfold. I can't exactly read what it says, but I believe there's an option to set the speed of the notes to a default, recommended speed for the specific song. Definitely useful!