Death metal, Black metal, Video Game Soundtracks, Anything real pissed off. If you want me to be more specific, FINE! Slayer, Amorphis until Tuonela, Anal Cunt, Almighty Danzig, Misfits, THE GREATEST METAL BAND EVER, MANOWAR! Umm, lets see....Old Morbid Angel, Deicide, IMMOLATION, Skinless, Dissection, At the Gates, Tool, A Perfect Circle, Aborted, Acid Bath, Blood Red Throne, Burzum, Bongzilla, Cult of Luna, DarkThrone, Old Dimmu, Dying Fetus, Electric Hellfire Club, Enslaved, Exit-13, God is LSD, Iron Maiden, King Diamond, Mercyful Fate, Macabre, MESHUGGAH, Neurosis, NIN, Opeth, Impaled Nazarene, Satyricon, SYL, a lot of other shit. Electronic robotic breakbeat shit like Flashbulb, Flexe, Aphex Twin, Squarepusher. Some hard techno like Praga Khan and Lords of Acid.