Drum and Bass!
dubstep, complextro (wolfgang gartner etc), house
death metal, thrash metal, grind metal, more death metal, viking metal, finnish metal, any other metal that involves coolguys going BWWWAAAAAAHHGDHGDHGDJGDHGDFNVLKJDVNSLNLVNNVLJLLJNP JGVJNZDHOF UPFDN JA ;L
also, i like 30's swing if im in the mood for it.
also, noise.
can't tell if relaxing or unnerving, but eargasm nonetheless