Stoner rock and stoner metal are terms describing sub-genres of rock and metal music. They are typically slow-to-mid tempo, low-tuned, and bass-heavy, incorporating elements of traditional heavy metal. psychedelic rock, blues-rock and doom metal into a more repetitive and riff-centred style. Other common traits include melodic vocals and 'retro' production. The genre emerged during the early 1990s and was pioneered by the Californian band Kyuss and New Jersey's Monster Magnet Read more on Last.fm.