Friday’s double-header at the Queen Elizabeth Hall on the Southbank was not only one of the final gigs in this year’s K-Music Festival – entering its tenth year with an eclectic range of Korean artists and bands performing across London and beyond – but also one of the launch gigs for this year’s EFG London Jazz Festival, now entering its 31^st year.

Choruses rocked, choreo popped, and thousands of light sticks danced in unison, as an incredible lineup of nine acts lit up this fourth edition of Korea On Stage, celebrating 140 years of UK-Korea relations.

Who knew! James Blunt has sold 20 million records worldwide. Who to, I wonder? Back to Bedlam, his 2004 debut, was the biggest-selling album of the first decade of the 21st century. Call that progress? When pop was pap – think the Carpenters or Bread – it was at least melodic and well-produced, leaving in its saccharine wake a handful of truly memorable songs that still evoke a pang of nostalgia and happy memories of sixth-form parties. But this kind of stuff is just… meh.

Early on in this arena gig by New Order, a youthful, enthusiastic voice could be heard to say gleefully, “They’re just so 80s!”. That statement was both accurate and yet also misleading, for as this near two-hour performance showcased New Order’s music is both of that decade and yet above it. 

A little remarked fact of modern music is just how lush the sound of modern R&B and adjacent music is. A decade ago, the relative harshness of trap beats and EDM synths seemed to dominate sonically, or on the more bohemian fringes there was a meandering haziness derived from the UK influence of James Blake and Burial.

War might be good for absolutely nothing, but it does provide bands with some easy names. Before the War on Drugs headline set, Warpaint took to the stage, and despite a muted reaction to the quartet they were on enjoyable form. They’re unlikely to ever be topping the bill in arenas in their own right, but maybe that’s a good thing, and the funky closing double header of “New Song” and “Disco//Very” whipped by with pace and verve.

Of all the Scottish bands to be name dropped at a Chvrches gig, the Bay City Rollers would be far down the list. Thankfully singer Lauren Mayberry was only citing the 70s group in reference to her tartan outfit, and not a surprise cover of “Shang-A-Lang”, but the Glasgow trio do share another similarity, in that they’ve proved to have considerable staying power in the pop world.

There are a few perils to saying supercalifragilisticexpialidocious, as Janette Manrara discovered on this opening night of Disney’s anniversary arena jaunt. Trying to divide the Glasgow crowd into sections to sing the song, Manrara tripped over who was to sing what, something only notable because the rest of the evening was possessed of an almost overpowering slickness.

In one sense you know what you’re going to bet with Róisín Murphy. Disco beats, a lot of bright colours, costume changes, goofing about, kick-arse vocals, and hats – lots and lots of hats. And yes, all that was present and correct at the Royal Albert Hall. But in another way, any given show is alien territory.

Aaron Jerome has always cut his own path through British music. After a few jazzy, groovy experiments under his own name in the 00s, he came dramatically to prominence at the end of that decade as SBTRKT. He was always associated with the post-dubstep moment where the UK bass subcultures of dubstep and grime folded back into house and techno, launching big names like Hessle Audio and Disclosure – but in fact he didn’t quite fit there.