Normal
00:43:34 (2,3,4,5,6,1,2,3,1,2,3) - This section is very tricky and quite hard to read. I'd suggest changing it to make it simpler.
Hard
00:08:08 (6,7) - Gah, do these really go with anything in the music?
As Larto said, have the circle fade back in slowly at the end instead of just reappearing.