It's opening is standard. Maybe a bit slower than usual. Trey lets loose digital delay loops. Very dark, raw, rough, plodding.
Nothing melodic about it.
Lots of heavy chords from Trey. Doesn't sound coherent or centered. It's, I suppose, similar to the Cypress Mike's Song in that it is ferocious and powerful. If you were impressed by this, then Cypress Mike's Song will likely school you. I guess Fish didn't hear him, or he would have joined Mike and started the 'paug rhythm sooner.