*sigh* long winded review ahead
This is getting ridiculous. I have been playing this game sporadically for a week and it never eases up. I am in band and have been praised for my sense of tempo (pulse, beat, etc.) but I can't get the commands and the beats to match up. I will hit a beat dead-on and it will still be gray. Occasionally I can get a good "Fever" combo going for an entire level, but most often everything just collapses.
Also, the sound loop you used for the drums has a gap when it rolls over and it often breaks my combo by disrupting the beat, please fix that.