The Louisiana swamps, with their load of social degradation and mental issues, could only give birth to one of the most putrid and antisocial genres of the entire heavy music spectrum: sludge. Heavily rooted in proto-doom (Black Sabbath, anyone) and the Eighties punk, bands like The Melvins laid down the tracks for an entire scene which found the focal point in the New Orleans area, with its group of sketchy personalities. Obsessive rhythms and thick, muddy guitars, the ideal for the most devious minds.