Towards the end of the encore, Deap Vally bring on their friend Solon Bixler. Frontwoman Lindsey Troy hands him her guitar. Despite this being their farewell tour, these two songs, she tells us, are new. The duo, now briefly a trio, go ballistic, a punk rock explosion ensues. Drummer Julie Edwards attacks her kit like Animal from The Muppets, Troy stomps like a glam rock loon before rolling about the floor, and Bixler scissor-kicks his way to stand aloft the bass drum.

They’re burning with the right stuff. They have been all night.

Adaptations of Henry James have often failed to click over the years. The author’s private, introspective works – sightseeing trips around people’s souls – seem hard to transpose into a crowded gathering where someone keeps yelling “Action!”.

The name, Caron and Michelle Maso explained to Los Angeles radio DJ Rodney Bingenheimer, was a literal description. “We’re both like five feet. We’re all grown up, but we’re still little.”

Artist and writer, Heather McCalden, has produced her first book-length work. The Observable Universe examines, variously, her familial history, the death of her parents to AIDS, and the subsequent loss of her maternal grandmother, Nivia, who raised her. It’s a fragmentary work, but the medium (half-memoir, half-essay) responds to the author’s own sense of disconnection and uncertainty, and at its heart is an aching feeling of loneliness and grief.

Julia Holter has created a long line of albums that trade on sophisticated poetry, both lyrical and musical, and her latest, perhaps the most adventurous of all, inhabits a world where nothing is certain, narratives are disjointed, and the imagination of the listener is left to run free.

Some icons sit back and bask. Kim Gordon does not. She has occasionally intimated that her New York cool and relentless work rate may be down to a smidgeon of imposter syndrome, even after all her years on the frontline. Whatever the truth of it, her output since Sonic Youth (and her marriage) dissolved in 2011 has been prodigious.

Declan McKenna is that rare thing, a popular contemporary male British singer-songwriter whose work tends to avoid solipsism, relentlessly projected vulnerability, and general whining. He writes interesting songs about an array of subjects, some even political in intent, and revels in expanding his musical palette.

You can almost feel the energy blazing off the stage in this fast, furious and fiercely funny two-hander from writer Racheal Ofori and Newcastle-based Alphabetti Theatre. Don’t blink or you’ll miss a crucial plot twist, or a nifty swerve into new characters, or even a major technological development.

It must have looked like a funny idea on paper: a mute innocent stumbles into a Hollywood career, is mindlessly fêted by the industry and throws all its idiocies into stark relief. It’s an idea as old as the romances of Chretien de Troyes and Voltaire’s Candide, and was given an earlier Hollywood outing in Being There. But the lack of originality of the basic premise isn’t the problem here. 

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.