Omo are a new supergroup of sorts, pulling members from Mogwai, The Twilight Sad, Aereogramme and Stretchheads, but come out tonight fully formed on a foundation of filthy sludge metal. The guitar is loud and distorted, the bass aims to get your bowels moving and the drums groove and pound simultaneously. But in a similar vein to the main set, you’re hard-pressed to take your eyes from the growling, snarling vocalist, P6. His camo kilt only lasts a few songs and then we’re treated to a cheeky display in direct homage to David Yow. Only a duet cameo from Lesley Rankine (Silverfish) manages to draw focus from the main man. Omo may not have any official releases yet, but they’re perfectly in sync onstage.

The stage is set in spartan style for The Jesus Lizard, reminiscent of erstwhile collaborators Shellac, with everything just so (including four beers neatly laid out for David Yow). If this makes you think it’s going to be a tight, measured performance, then the arrival of Yow in oversized fur coat, Billie Eilish tour tee and no trousers should let you know that this is not going to be the case. And that is chaotically confirmed as he dives over the barrier within ten seconds of opener ‘Seasick’, delivering the rest of the song while rolling around in the pit.

It’s the legendary band’s first time in Scotland this side of the millennium, but there’s little time for sentimentality as the hits come thick and fast, drawn from across their output. New songs like ‘Falling Down’ and ‘Hide and Seek’ sit comfortably alongside old favourites like ‘Boilermaker’, ‘Nub’ and ‘Then Comes Dudley.’ Yow occasionally takes a break from drunken tai chi, baring his arse and crowdsurfing to give his sincere thanks and berate the audience for not clapping constantly.

‘Mouthbreather’ is particularly shouty and then a high stool is provided for the loose, jazzy ‘What If?’, allowing everyone to take a beat. But Yow gets restless quickly and almost topples over, then passes the chair into the audience much to the security guard’s dismay (he spends half the night chasing/catching/propping up Yow as he throws himself about the place).

The other three members are slick and professional all night – “it’s like watching a mad old bastard backed by three Swiss bankers,” quips a friend. They lay down the heavy, punishing grooves that Yow then yelps, barks and occasionally croons over. He’s down to just fur coat, poser pouch and nothing else by the first of two encores, but shows no signs of slowing down as he demands more beer and dives/falls back into the audience during ‘If You Had Lips.’

The final encore ends with the earliest song of the night, the industrially-tinged ‘Bloody Mary’ which sounds just as ferocious 35 years on. The band may now be in their 60s, but this reunion is no mere cash grab (see also: their excellent new album, Rack) – they’re just as chaotically brilliant as ever.