Death Metal – Pretty much interchangeable with grindcore (on the more extreme end) early Napalm Death & Carcass. Black metal topics are game, but really the idea is gore, blood, body parts, Cannibal Corpse being pretty much the far-flung reaches of the idea. Other signatures: blast beats, grindcore vocals, down tuning, doom chords. check out bands such as Morbid Angel, Death, Obituary, Deicide, Six Feet Under, Dismember, Hypocrisy, Entombed, Carnage, Unleashed. Offshoot genres such as Gothenburg Melodic Death Metal (Dark Tranquillity, In Flames, Soilwork, At the Gates), Technical Death (Cryptopsy, Atheist, Cynic), Goregrind.(Cephalic Carnage, Pig Destroyer), Prog Death (Opeth), Deathcore (Job For a Cowboy), Death/Doom, Blackened Death… confused yet?