Ok so, I've never played rhythm games much mostly guitar hero when over at a friends 9 years ago and I now remember how bad I really am. The highest I could get is something like 67700 on pirate house and I swear even that was a fluke. Anyway on to the review.
I think when the notes appear they should be color coded to make their more distinguishable, other rhythm games that have you play to a beat have color indications because reading is slow and colors are fast. It's a weird thing but that's it the only other thing I can say could be better was the ability to show the tutorial again. The game was really good I can tell but just not my cup of tea, I'm sorry.