Saturday commuters sprinting for the 17.33 to Ardrossan find themselves dodging an obstacle course of swing-dancing young couples, soundtracked by a pensionable trad jazz band. A shifting crowd of about 100 pause in their journeys at Glasgow Central station to enjoy Penman’s Jazzmen, skilful Scottish veterans comfortable with each other and the demands of this century-old New Orleans music.

It’s presumably just a freak of scheduling that on the night the Rolling Stones threw up the bunting across town, an artist to whom they owe a whole heap of thanks was hosting a party of his own. Bobby Womack was the songsmith who co-supplied the scruffy young covers band with their first number one. “It’s All Over Now” was released by the Stones in July 1964 only a month after The Valentinos’ original version. Not that the song made it onto Womack’s setlist for the first two nights at the Forum.

The United States of America: The United States of America – The Columbia Recordings

Various Artists: NME C86, The Motown 7s Box – Rare and Unreleased Vinyl Volume 2

It’s statement of intent to open your first British headlining show with a 15-minute version of an album track which lasts a minute and three-quarters – from an album which itself lasts barely more than 30 minutes. And then to riff on it, incorporating elements from a debut album which barely anyone beyond your native country has heard. In taking her current album No Deal’s “I Feel You” and merging it with A Stomach Is Burning’s “A Stomach”, Belgium’s Melanie De Biasio could have alienated an audience who had never seen her before.

Dead Moon: In the Graveyard, Unknown Passage, Defiance

The Eventim (Hammersmith) Apollo, where Pat Metheny’s Unity Group last night gave a spellbinding, if sometimes baffling, performance, has hosted a goodly range of gigs in its time. Few of these can have offered such diversity within a single evening. Piece after piece left last night’s audience whooping with exhilaration, though Metheny’s fondness for mechanical innovation briefly threatened the audience’s otherwise adoring reception.

Decidedly diverse in its musical offerings as ever, this year’s Field Day, which for the first time was spread over two days with the Pixies as a fitting finale, was gifted with glorious sunshine and a chipper ambience. Fresh ferocious voices breaking out and established names reaching back to their roots made for a harmonious mix of boldness and greatness.

Various Artists: Too Slow to Disco

When you have quite as much going on as 10-piece (in their current form) experimentalist Canadian indie band Arcade Fire do, it’s hard to know where to look. It’s a fact they’re aware of, and it seems like they even riff on it quite heavily with the overwhelming presence of the fragmented, fractured aesthetic of their latest album Reflektor at Earls Court, on the first of their two-night run.