Biffy Clyro / Aereogramme @ Potterrow

While grown men sob salty tears into pints of cheap Fosters as they whimper "don't break up!", Aereogramme's (4/5) resolve is staunch in their delivery of this last (ever?) Edinburgh show. With a promiscuous array of textures to call upon from their nine year wide palette, tonight they segue fluidly between approaches to the God Machine's fragile beauty and a heavier, more sprawling apocalyptic wail and drone that dwells in the same post-rock centric quarters as recording pals Isis. "A potent mix of wonder and fear" and a punishing loss to be sure, yet a baffling majority would still prefer to keep Pete Doherty in business.

And so the ball is firmly in headliner Biffy Clyro's (3/5) court to pick up the crowd's eyes as the trio throw themselves into 57 with everything they've got, which bodes well for the ferocious play of Saturday Superhouse and the bittersweet ballad with machine gun drumming that Get Fucked Stud turns into. By all accounts, burning up the charts is what the Biffy at last threaten to do with their fourth LP, yet the calmer, more restrained moments of their set still throw up more in the way of tentative questions than definitive answers. At their finest when they crank it up, yet easing up on the throttle when they're about to truly take off, tonight they're every inch the Puzzle. [Dave Kerr]