As frontman with Mayhem, Tormentor, Sunn O))) and more, Attila Csihar has been the enigma at the heart of extreme metal for 40 years – and he’s seen the best and worst of it

Dour power from Type O Negative and Crowbar men

Musical chameleons Ulver have reinvented themselves yet again. With their 14th album, they’ve turned away from the progressive synthpop of their recent releases and delivered something more atmospheric. Mainman Kristoffer Rygg looks back on the personal strife and decades of deviation that have paved the way for Neverland.

Swedish trio transport their spacey metal sounds to dark and interesting places.

Gong ’s music has always been out of this world, but on their latest offering, Bright Spirit, they transcend darkness with a hefty dose of glissando and a pinch of System 7. Frontman Kavus Torabi, bassist Dave Sturt and guitarist Fabio Golfetti tell Prog how the third part of their latest trilogy has re-energised them and why they’re looking forward to getting back onstage.

Simon Neil leads a back on top Biffy ...