Rosetta Stoned by Tool I've been transcribing it for the last month and just started playing it within the last week and it is the most difficult song I've ever learned on drums. If he plays it correct, and not just some crappy beat he puts over it, I will say he is the best drummer of all time. It is not humanly possible. Or if you want to throw him off, ask him to play Scatterbrain by Jeff Beck. You can't play it unless you move your ride cymbal to the left side making you play EVERYTHING off the left :) (meaning you play everything with your left hand dominant instead of your right hand.)