progressive metal

Dir En Grey

alternative metal, extreme metal

Dream Theater

progressive rock

Porcupine Tree

progressive rock, psychedelic rock

X Japan

heavy metal

Loudness

heavy metal

Queensrÿche

heavy metal

Amorphis

death-doom, folk metal

Steven Wilson

alternative rock, pop music

Joe Satriani

blues, hard rock

Avenged Sevenfold

heavy metal, metalcore

Coheed and Cambria

alternative rock, progressive rock

Opeth

death metal, progressive rock

Angra

Mastodon

heavy metal, sludge metal

Haken

progressive rock

Riverside

progressive rock

Trivium

heavy metal, melodic metalcore

Devin Townsend

ambient music, heavy metal

Gojira

groove metal, technical death metal

Ayreon

rock opera

Primus

alternative metal, alternative rock

Waltari

alternative metal, avant-garde metal

Buckethead

avant-garde jazz, country rock

Meshuggah

avant-garde metal, djent