Analysis of information sources in references of the Wikipedia article "Sludge metal" in Indonesian language version.
…sounding like a cross between Sleep's drowsy, Black Sabbathy meanderings and Electric Wizard/Burning Witch-style gut-curdling, muddy sludge.
…elements of hardcore punk, psychedelic stoner rock, technical speed metal, and good old-fashioned Black Sabbath sludge appear in their music.