Anything progressive, heavy, heartfelt, preferably all three! Here are a few: Devin Townsend, SYL, Meshuggah, Frank Zappa, Jethro Tull, Dream Theater, Opeth, Porcupine Tree, Tool, Cynic, Mastodon, Suffocation...,
Bands: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z