Age of Artemis
power metal, progressive metal
Age Pryor
ambient, singer-songwriter
Ageless Oblivion
death metal, melodic death metal, metal, progressive death metal, technical death metal
Agent Fresco
math rock, progressive rock, rock
Agent Steel
heavy metal, metal, power metal, speed metal, thrash metal
Aghora
jazz metal, metal, progressive metal, technical metal
Agitation Free
krautrock, progressive rock
Agnes Strange
hard rock, psychedelic rock, rock