Nice game you have there!
Unfortunately I ran into a rather crucial mistake :{
It seems to be impossible to get 100% on some (if not all) tracks,
somehow the first note won't register. And in a game like this,
that is a deal breaker.
Also, another rather irritating point is that the track starts to play as soon as you select it.
This hardly allows you to prepare for the button presses since you won't have you fingers correctly aligned yet. A simple "press key to start song" would have prevented that.
This could have been great, yet as it is now.. It barely is "good" since being able to score perfect
is a feature that absolutely cannot be absent.