Post-metal is a music genre describable as a mixture between the genres of post-rock and metal, with its roots in progressive rock and industrial music. It is broadly characterized by distorted guitar, heavy atmospherics, gradual evolution of song structure, and a minimal emphasis on vocals.
Post-metal is a closely related to the larger and older genre that is art metal, as post-metal bands often name art metal groups as influences.Hydrahead Records owner and Isis frontman Aaron Turner originally termed the genre "thinking man's metal", demonstrating the link with art metal and the avant garde, by trying to move away from common metal conventions. "Post-metal" is the favoured name for a growing genre, one also referred to as "instro-metal", "postcore" and a great range of others.