Where to start with New Orleans sludge legends Eyehategod. Warning: may contain drugs

Dutch veterans Asphyx serve up a tour de force of speed, sludge, riffs and sly humour with first album in five years

Post-rock chameleon Emma Ruth Rundle and sludge metal boundary-pushers Thou team up on brilliant left-field collaboration

Beggar are what Black Sabbath would sound like if they hung out in some of the world’s harshet war zones

Nirvana fucking ruled. Krist Novoselic might be out here definding Trump these days, but 30 years ago, he was in a good band. Louisiana sludge-metal warriors Thou have always known this. Over the years, Thou have released a whole lot of Nirvana covers. Sometimes, those covers have been relatively easy to find, as with the…