The O2 is usually a bright, sterile space before the bands come on. Its starkly lit US sports event ambience is accentuated by humanity milling around layered plastic seating clutching giant tubs of soft drink. Not so tonight. The venue has been open for three hours before the headline act is due. The lighting is purposefully dingy as 2ManyDJs and James Holroyd spin techno-flavoured sounds, warming up the crowd.

There couldn't be much that's more techno than for a musician to have had a quarter-century career, only just be releasing his second solo album, and making it a quadruple.

Ever since rock’n’roll began, the orchestral cover version has played a contentious role in popular music. It has sometimes signified a revision of raw musical styles for those who prefer being spoon-fed; it has sometimes represented aspirations to high culture and the concert halls of yore; in more recent years, it’s often been a gambit to persuade those growing older to re-listen to a defanged version of their youth. And it’s almost always a cash-in.

In the eight years since theartsdesk last spoke to Carl Craig, a lot has happened. He moved from his native Detroit for a sojourn in Barcelona (partly for ease of access to his summer DJ residencies in Ibiza), then recently returned. He's reinvented tracks from his back catalogue for orchestra, in a style he dubbed "action and adventure" - certainly more John Williams than Debussy - and has performed them as such around the world.

Canadian DJ-producer Philippe Aubin-Dionne – AKA Jacques Greene – has had a successful career in global clubland. One release in particular, his spacey 2011 deconstruction of the song “Deuces” by R&B star Ciara, which he entitled “Another Girl”, created waves in the world of house music. His 2017 album Feel Infinite demonstrated he had vision enough to hold listeners on a longer electronic journey.

Parisian outfit Caravan Palace have now had a career that’s lasted over a decade. They’ve not busted the British charts open (although they have had hit albums in France), but they’ve long been festival favourites with multi-millions of YouTube plays, and their UK profile has never been higher. Their new album dials back the manic dancefloor energy they sometimes emanate, yet succeeds as a wittily constructed, summery, electronic dance-pop concoction.

Club music has its own micro-universe, with its own rules, jargon, and fans. It also has globe-trotting stars most people have never heard of. Much of the music is functional, to be danced to at 3.00 AM on MDMA, no more, no less, unconcerned with the usual structures and frameworks of rock and pop. In this world, Hot Since 82 is a kingpin.

Nineteen years, seven albums and untold side projects into their career, Hot Chip have for the first time enlisted outside producers: Rodaidh McDonald and French disco/house don Philippe Zdar. And it's worked. Over the course of the previous albums, the band had steadily evolved from ramshackle and rather self-consciously quirky writers and players to a far slicker operation.

Primal Scream have played in this city, in the recent past, at the 4,500 capacity Brighton Centre but tonight they’re in a venue which holds well under 400. A bananas atmosphere reigns when bands of their stature play intimate shows, and so it is tonight.

On his second album, Swedish star DJ Kornél Kovács has achieved the impossible and made “tropical house” interesting. Somehow, he's taken every cliché of that slow, lilting pop dance sound Drake and lifestyle influencers Instagramming from pristine beaches and tweaked them to find unexpected strangeness and depths.