Sludge

Philadelphia quartet Rosetta push the boundaries between metal, progressive rock, post-rock, space rock, and hardcore punk, employing an experimental songwriting technique filled with chaos and atmospherics. Their sounds range from Pink Floydian / progressive rock sonic layering to walls of pure static ambience to crushing, sweeping sludgey riffage. Their first album (The Galilean Satellites, 2005) was an especially ambitious project: the goal was to record two discs of equal length (one a metal album...

There are 3 bands that share the name Mammoth and one band formerly known as Mammoth: (UK) 1. After the split of Gillan in 1982, the bearded John McCoy (bass guitar; 19 stone) recruited session musicians 'Tubby' Vinnie Reed (drums; 22 stone), 'Big' Mac Baker (guitars; 24 stone) and Nicky Moore (vocals; 20 stone and 5'6") for his solo project.
Initially christened 'Dinosaur', they changed their names after complaints from a similarly titled California blues outfit.

Melvins are an American band that formed in Montesano, Washington in 1982. In the early days of their career their dark, heavy, oppressively slow sound made them innovators of genres like sludge, grunge, and doom metal. Melvins' music is influenced by Flipper, Black Flag's My War-era hardcore punk and Black Sabbath-style heavy metal, but their idiosyncratic approach, bizarre sense of humor, and experimentation make neat categorization difficult.

1) A Japanese Sludge/Hardcore punk band who are best known to western audiences as having done a split with Boris 2) An acappella folk / gospel group based in WV formerly known as the Missing Person Soup Kitchen Gospel Quartet whose albums include "Put Your Loving Arms All Around Me", "Bare There Were They" and "Stirring It Up"