It seems that the gradual leakage of avant-garde-post-classical-call-it-what-you-will music from the rarefied environment of concert halls and into the spaces traditionally inhabited by alternative and club music is now inexorable. And violinist Aisha Orazbayeva is one of the instrumental (pun intended) figures in this move from trickle to flood.

Has any artist ever painted an apple that gets as close to the essence of appleness as Cézanne? I don’t think so. Cézanne’s apples are the equivalent of William Carlos Williams’s cold, sweet plums. Not only can you almost taste Cézanne’s apples but you can sense their weight, their density. And in your mind, you touch their smooth, waxy skins.

Bernd “Burnt” Friedman is one of the most relentlessly questing of experimental musicians. In over 30 years of making music and 25 years of releasing it, he has specialised in researching ancient, hypermodern and as-yet-undiscovered methods of soundmaking, including traditional and home-built instruments and the application of high-tech methodologies to established forms from around the world, in particular jazz, western club sounds, and African and Japanese styles.

Nature declined to reveal the Northern Lights over a long winter weekend in Iceland. My hotel was geared up to the spectacle, offering the option of a phone call any time in the night should they appear; but no call came. I only hope the tourists who packed the outward-bound plane hadn’t booked just for that. They’d surely not be disappointed in this most spectacular of lands so long as the weekend package-tour selling point wasn’t an idée fixe, and in any case I suspect half had come to club the night away.

Perhaps the most effective way to sum up St Vincent - the self-titled fourth album from the one-woman avant garde powerhouse known to her friends as Annie Clark - is that it’s the closest she has come on record to the visceral, engrossing experience that is seeing her live. Clark’s albums before 2012’s collaboration with David Byrne were beautifully crafted things, in turns both gorgeous and surreal, but with a certain under-glass quality.

Finland’s Jaakko Eino Kalevi, who played his debut British show last November, heads up theartsdesk’s latest regular round-up of what’s come down from the north. A spellbinding display of individualistic pop, the London outing coincided with the arrival of his first non-Finnish release, the Dreamzone EP.

Oliver Coates is the very model of a modern musical generalist – able to jump, or ignore, the boundaries between musical categories yet retaining deep understanding of the nuances of each category or genre. He has feet firmly in both the concert hall and the artier side of the electronica world, and has collaborated broadly over recent years – though is only now emerging as a solo artist.

It has to be partial, because out of the 10 opera productions from the iconoclastic French actor-director, who died yesterday of lung cancer at the age of 68, I’ve seen but two, on screen only – but a big two at that – and only three of his 11 films. Yet they all had a tremendous impact, one way or another.

It's always nice when musical events of an overtly academic bent are taken away from the academy: when high-falutin' or exploratory music is made to stand on its own. All right, this show demonstrating new technical innovations by musicians affiliated with the Goldsmiths College Computer Music courses hadn't come that far, being some couple of hundred yards along the road from the college, but the Amersham Arms backroom is more used to rock gigs and raves.

We're pleased to announce The Arts Desk is a media partner of the Denovali Swingfest London on 20 and 21 April at London's The Scala. It's a good match, as Swingfest and the Denovali label, like The Arts Desk refuse to acknowledge artificial boundaries between “high” culture, the avant-garde and grassroots electronic and club music.