I believe all of the music is by Jonathan Bepler, and most of it is exceptional. Dave Lombardo and the singer of Morbid Angel turn up in part 2, playing and screaming along to swarming, buzzing bees, and Murphy's Law and Agnostic Front show up in the final part of 3, which is available on DVD as "the order."
Two neat little things I liked about CREMASTER were the "death metal + bees" moment, in that a flagrantly penetrative image cut to the phallic microphone, not penetrative but receptive, and the field of (wall of) bees, not receptive but penetrative...neat little inversion. Even neater was the fact that the two hardcore punk bands were not simply playing battle of the bands, but facing off like a Jamaican style sound clash, and being "dubbed" by Bepler or the sound designer, into the mediocre electronica, the concrete industrial sounds of Richard Serra working, and the other Order themes. The individual parts of any given punk band (bass, drums, guitar) were separated, isolated, used that way. The CREMASTER book is a big beautifully designed gush. Is New York really this bored? Interesting at best. Bepler's music for 5 is embarrassing low-rent Gorecki. -----s