Very good game. For simplicity I will mention the good and bad parts below.
The good parts:
1. The game looks incredible.
2. The sound effects/music is very well done.
3. The controls are extremely well made.
4. The tutorial was very helpful.
5. The UI is very nicely done.
6. The concept is extraordinary.
The bad parts:
1. The game is a bit difficult, and maybe a change of difficulty would help (when changing the difficulty, the wheel will move more slowly and so will the song).
Anyway, very cool game. It drove me crazy (in a good way).
As a question: did you make the music? If yes, then with which application?