Inside Out
hardcore punk, straight edge
Insigma
electronic, melodic trance, progressive trance, trance, uplifting trance
Insite
emo, pop punk, post-hardcore, rock
Insomnium
death metal, melodic death metal, metal
Interference
celtic rock, rock, soundtrack, folk
Internal Void
doom metal, heavy metal, stoner rock
Inzest
death metal, deathcore, grindcore
Iona
celtic, folk rock, post-rock, progressive rock
IOSONOUNCANE
electronic, singer-songwriter
IQ
neo-prog, progressive rock