sludge — similar tags: doom, stoner, sludge metal, doom metal, post-metal, metal, stoner metal, sludgecore, stoner rock, crust, stoner doom, powerviolence, hardcore, noise rock, grindcore, heavy psych, grind, retro rock, heavy, black metal, sludge rock, slacker rock, punk, blackened doom, post-hardcore, death metal, noise, drone metal, desert rock, death, death doom, thrash, fuzz, grunge, crust punk, black, phyllomedusa, drone, southern metal, noisecore, funeral doom, frognoise, blackened, noise metal, post-rock, slowcore, doomgaze, heavy metal, neocrust, drone doom,