Genre: Rock
Neurosis is an Atmospheric Sludge band, based in Oakland, California. They formed in 1985 as a hardcore punk band, and their sound progressed towards a doom metal style that also included influences from dark ambient and industrial music as well as incorporating elements of folk music. The band is highly regarded as the primary pioneer of its genre, sometimes referred to as post-metal. Critic Brian Russ has described them as "atmospheric hardcore".
In late 1985, Scott Kelly, Dave Edwardson and Jason Roeder (formerly members of Violent Coercion) founded the band as a hardcore punk outfit, borrowing from British crust punk like Amebix. In 1986 Chad Salter was added on second guitar. In 1989 Chad Salter was replaced by Steve Von Till.
It has gradually progressed through a variety of styles, arriving at a mixture of heavy metal and acoustic, minimalistic ambiance which has proved influential on the doom metal scene.
Source: http://en.wikipedia.org/wiki/Neurosis_(band)