Great, but some small things to point out...
First off, 'twas great! Quite good songs, decent looks, etc. etc. etc..
Now, the things to point out: the pause-function ceased to work for me after a while of playing. I tried all songs, and then tried them all again for a higher score. At the second attempt of the song in the middle, the pause-function didn't work anymore. Check that bug out!
Also, at one point the rythm went WAY off! I noticed it in the middle of the song, how i trummed the floor with my foot to the beat, but the clicks weren't aligned in any way!
...and then, a final notice i made..... The hardest song had the easiest beat! The clicks came fast as hell, but it still had the easiest beat...