Cannibal Corpse + Guitar Hero

Perhaps everyone has seen this already, but this is a video of a guy who hacked/programmed (not sure what word to use) his PS3/Guitar Hero 2 to play Cannibal Corpse's "Shredded Humans." I think the song is mislabeled on screen by the game, because he used a slot for an existing song within the game. Makes me wonder what happens if you stop playing the controller, or hit the wrong note. Does all the music go silent? I mean, I'm sure he didn't get the master tapes from Cannibal Corpse so he could isolate the guitar tracks. Nahmean?