Interesting rhythm game, I think it works well, not sure if I'd be able to ever catch all the notes, even though I play a lot of rhythm games. I think it's hard to be this accurate and fast by dragging with the mouse, however I like the idea, I haven't seen anything like this before and the notes sync up very well with the song.
It would be great to have some more visual feedback about where we are in the song and how many notes were missed and hit. Great job !