It’s always good to be among friends and it’s safe to say that everyone gathered at Islington Assembly Hall on Saturday for the third and final North London gig of Billy Bragg’s One Step Forward, Two Steps Back Tour was left of centre. The tour began in July on the south coast, planned long before Borrissey, as Bragg calls the PM, conned the country in going to the polls but events have certainly given it a new urgency.

There was something fitting about the Lumineers entrance in Glasgow. As “Gimme Shelter” blared around the SSE Hydro, lights pulsating over the crowd, it was drummer Jeremiah Fraites who took the stage and started the opening beat of “Sleep On The Floor”, an array of phones quickly whipped out to act as a welcoming committee from the crowd. The rest of the band followed in due course, but this is a group for whom the drums are at the heart of their stomping songs, no matter what.

Leonard Bernstein talked about “the infinite variety of music” and the late maestro would have been thrilled by the variety on display at the Royal Festival Hall where Rhiannon Giddens and Francesco Turrisi were as exciting and exhilarating as anything I’ve heard.

Time moves fast in the music business. It has only been a matter of months since Fontaines DC were playing the far smaller confines of King Tut’s Wah Wah Hut in Glasgow, and here they were at a sold out SWG3, celebrating the success of debut album “Dogrel”. If that record is one of the finest released this year, then this gig was not quite the victory lap hoped for, albeit still a show that displayed evidence of their quality.

Less really is more. Vinícius Cantuária is a musician who has done it all, but has reverted to the simplicity of singing classic Jobim bossa nova songs, to which he brings a quite astonishing lightness of touch. Last night at the Barbican, alone on stage, with just a nylon string guitar for company, he made the 1,850-seater Barbican feel like the most intimate of small clubs.

A few years ago it would have been hard to envisage proto-punk maniac Iggy Pop being a star feature of the EFG London Jazz Festival. His last few albums, though, have been heavily flecked with jazz, and let’s not forget that as far back as The Stooges’ 1970 album Funhouse, free jazz sax squalling was part of the mayhem.

The four young men who comprise Darlingside met at Williams College, in the Berkshires which, each October, declares a “Mountain Day” when students hike up Stony Ledge and celebrate with donuts, cider and a cappella singing.

When it comes to the true jazz legends capable of filling concert halls with faithful fans, whom jazz festival programmers can put on as headliners, the choice is dwindling. Herbie Hancock is one and he does; his Barbican concert is one of the big events of this year’s EFG London Jazz Festival and it had been sold out for months.

Beck stands on the front cover of his new album Hyperspace with a vintage Toyota and Japanese text resplendent above. It’s the perfect scene setter for an album you could easily imagine soundtracking a midnight drive through Tokyo. Or if the lyrics are anything to go by, an intergalactic voyage.

In a first for this column, what’s cropping up is a cassette reissue. The Clash’s third album is so familiar, going into what it is or was in any depth is redundant but it’s worth considering what’s going on here.