you know I actually agree, the intro was a little bit on the beginner side. but what do you expect? some musicians just play around with sounds and usually a single tune that they might have in there heads, or they might have improvised the tune. the slayer was literally only two states, undamp, and damp, and there were about 4 slayers, two acting as one . meaning the primary lower guitar, then there's the rythem guitar that played through mainly the chorus', and finally the solo slayer, that one's easy to point out :)