I've noticed that the instruments feel just a tad repetitive when you've played for an hour or so, so possible could you add an option for different instruments sometime in the future, such as drumset? Also the notes combining is cool, but maybe have some synergy with different beats for people who are musicians and think some beats might work, instead of trying to get all the notes to "do all the things" at once. And one final question, what do the quarter, eighth, and sixteenth notes do? I'm genuinely confused as to what they do, I haven't seen any clear indication of what they do.