Sludge Metal
Sludge metal (also known as sludge doom or simply sludge) is an extreme subgenre of heavy metal music that combines elements of doom metal and hardcore punk. The genre generally includes slow tempos, tuned down guitars and nihilistic lyrics discussing poverty, drug addiction and pollution.
The sound of sludge metal has its origins in California hardcore punk bands in the early-to-mid-1980s like Bl…