hm, i've always thought drums were tuned to F/c/a/f (snare/hightom/lowtom/floortom) give or take a semitone, for a rock-sized (not fusion) kit. then again this is only for the times i can hear the drums clearly, and i've not read the drum tuning bible yet (lack of patience haha), so, gotta take alot of salt with this one maybe.