It is not the first time Selvhenter have shown Roskilde how a saxophone can scream. Even the most avant-garde-ready listeners were left gasping for air. It was hard not to let your own lungs empathise with the long passages and unruly energy that the experimental Copenhagen quartet excelled in, wielding an instrumentarium consisting of two drum kits, synth, trombone, saxophone and assorted extras.

And the more the band – positioned in the centre of the Avalon tent, surrounded by the audience – wove their collective patchwork carpet, the more the individual character of the instruments was erased. Selvhenter could just as well have been playing entirely different instruments. You could see Sonja LaBianca standing there, forcing tones out of a wind instrument, yet it sounded more like a harp from outer space. It was astonishing how her saxophone fanfares resembled distress signals beamed into the cosmos. Meanwhile, the drums drove very grounded rhythms: Steve Reich-like pulses colliding with freer passages.

Selvhenter inflated the tent with full-fat punked and jazzy noise. Without pauses (not even when a snare drum went dead and had to be replaced mid-set) and without water for the crowd. Being so close to the musicians was a plus; on their small central stage they looked like giants in a battle arena. This was new music that was deeply physical. For about an hour we breathed together (and perhaps even sweated?) in sync. And it is profoundly good to do something together at a festival.

Selvhenter on the Orange Stage next year. Come on!