Actually, it sounds to me like both nasai and coastercraver are right.  Remebmer, drum sounds are "heartbeaat rhythms".  Anyway on to the more important topic: the coaster.  Stan Checketts, owner of S&S, wanted TA2K's first installation to be the world's first 100+mph full-circuit coaster, but no US park wanted to go all out on the first attempt (until it gets to the GP, it's basically a prototype and therefore risky financially).  So, PKD got the first S&S coaster, but a somewhat smaller version.  Anyone who gets to ride this beast, please post...Thanks!