This game is based off a sleeper hit called Amplitude, made by the same people who made Guitar Hero. The object of the game is to get through the song alive while getting as many points as you can for bragging rights.
To play all you do is hit the combination of notes on each track until the track explodes, then you move on to the next one. Tracks will respawn so you need to move quick. Keep the tracks activated and you will make it to the end no problem.
Note: All the songs in this game were made be either me or my friends, I'm currently uploading them to the audio portal now.
Another Note: Flash does not properly pre-load dynamic audio files, so the preloader takes a second to show itself.