Pioneered by the band Earth, Drone metal, also known as drone doom, is a subgenre of doom metal that takes the heaviness and slowness of its progenitor to a new extreme. The music consists mainly of distorted down tuned guitars and bass with rare clear (melodic) themes, usually with lots of reverb applied to the final mix. Earth are an American doom metal band who were pioneers of the minimalistic, bass-heavy, drum-less form of doom sometimes known as drone metal. ... A genre is any of the traditional divisions of art forms from a single field of activity into various kinds according to criteria particular to that form. ... Jump to: navigation, search Doom metal is a form of heavy metal that emerged as a recognised subgenre in the mid-1980s. ... When sound is produced in an enclosed space multiple reflections build up and blend together creating reverberation or reverb. ...

One of the most prominent drone bands, Sunn O))), play extremely slow, minimalist bass riffs without drums. Other notable drone metal bands include Boris, Khanate, Burning Witch and Asva. Jump to: navigation, search Sunn O))) (or Sunn 0))), pronounced simply Sunn) is an American doom/drone metal/dark ambient band consisting of Stephen OMalley (Khanate, Burning Witch) and Greg Anderson (Goatsnake). ... Jump to: navigation, search Minimalism describes movements in various forms of art and design, especially visual art and music, where the work is stripped down to its most fundamental features. ... Bass (IPA: [], rhyming with face), when used as an adjective, describes tones of low frequency. ... For other kinds of drums, see drum (disambiguation). ... Boris is a Japanese band, known to regularly switch musical genres between albums. ... Khanate is a band that brings together James Plotkin and Alan Dubin, two members of the defunct band OLD as well as Tim Wyskida of BLIND IDIOT GOD and MANBYRD. It is rather similar, maybe an evolution, of OMalleys previous band Burning Witch. ...