Altar

Altar is a collaborative album by the drone metal band Sunn O))) and the drone musician Boris, released in 2006. The album features a mix of heavy, distorted guitar riffs, deep, resonant bass, and atmospheric soundscapes, showcasing the signature styles of both bands. Altar explores themes of ritualistic sound and sonic landscapes, pushing the boundaries of heavy music. It has been praised for its ambitious scope and immersive listening experience, solidifying its place in the experimental and heavy music genres.