Oooooooooooooooooooooooooooook, I DID IT! Finally! I did find that you can just hardcore spam buttons to get the notes to work, which is nice for the sake of completion, but not so nice for the sake of meaningful gameplay =P It definitely felt less demanding than last playthrough, but I think there's still room for improvement. I think the timing visuals could be changed so that they're clear when you can and can't press the button. The reticle could be differently colored from the circle so it's position doesn't get lost and is highlighted when compared to it. That way the timing is more clear. Also, you could just make the circle light up or something when the timing is correct. Just a couple thought I had this time around!
So glad I beat it, honestly, I love the idea of this game =D