Music, writing music, beer, green buds, books, movies, video games, automotive.
Anyone
Anything technical. Prog, Death, Black, Thrash, Metalcore, Hardcore, Grindcore, Grind, Jazz, Fusion, Instrumental, Experimental, Hip Hop, Gangsta, Punk, Stoner, Rock, World, a bunch of unclassible bands you just can't label, D'n'B, Jungle, Reggae...Too many bands to list...