Isis is a Los Angeles, California-based band, founded in Boston, Massachusetts in 1997. They have borrowed from and helped to evolve a sound pioneered by the likes of Neurosis and Godflesh, creating heavy music consisting of lengthy songs that focus on repetition and evolution of structure. As such, a great range of musical labels are used to describe their sound, including avant-garde metal, post-metal and experimental rock.
The band's most recent album, In the Absence of Truth, was released on October 31, 2006.