At first it looked like a joke. But, as each muscle spasm, set off by an electric shock, did appear to produce a pained expression in the performer and a subsequent note, one slowly had to accept that these four string quartet players were indeed being electrocuted into performance. The Wigmore Hall, it wasn’t. Sonica, it certainly was.

Even Joni Mitchell wasn’t spared an affectionate ribbing, as jazz singer Ian Shaw continued his Joni at 70 Tour with a combination of sincerity and satire, both red-raw, in the Elgar Room last night. Stripping pretensions compulsively, Shaw gave an engrossingly witty performance of the work of the great singer once known, we learnt, as “Moany Mitchell” in the young Shaw’s household.

For someone who has built a reputation for limpid, introspective piano playing, last night was a new adventure both for Brad Mehldau and his (mainly) supportive audience. He has covered fellow introvert Nick Drake’s songs, and he is a master of thoughtful, expressive piano. So when we hear he's doing a show that references drum ’n’ bass and 1970s funk in a duo with a drummer with synths and Fender Rhodes, a certain apprehension is in order. It could have been like all those opera singers who suddenly discover jazz and usually make a complete hash of it.

With the bell of his Dizzy Gillespie-style “bent” trumpet pointing skywards like a rocket launcher, Scott dominated the stage at Ronnie Scott’s last night, every bit the iconic jazz trumpeter. Instead of the clearly-articulated, pure-toned pulse of a Louis or a Dizzy, Scott’s trumpet voice is smudgy, occasionally even grimy, with chromatic bursts of notes, played so fast you can’t always hear the join.

What does a stuffed penguin have in common with the religious concept of transcendence?  Even less than you might think, it emerged last night, during one of the London Jazz Festival’s less well matched programmes, featuring one trio named after each item. Gogo Penguin, an amiable and talented group, were outgunned by the intellectually and spiritually sensational vision of New York drummer Jaimeo Brown’s improvised setting of sampled spirituals from Gee’s Bend, Alabama, the Manchester band’s light-heartedness in danger of seeming simply lightweight.  

The expected curveball came an hour in with a completely unfamiliar 14-minute song. Based around a pulsing bass riff, it was a deconstructed merger of The Rolling Stones’s “Paint it Black” and the Spanish side of Love’s Da Capo. A large contingent of the audience used it as handy toilet break.

Last night’s Konitz and Wheeler concert was the sort of event at which the audience’s jaw has dropped before the music starts. Lee Konitz and Kenny Wheeler already have substantial legacies: Konitz’s cool sax style was a landmark sound, for decades the only serious alternative to Parker’s bop; his huge discography, varied in style but pretty uniform in quality, is a testament to his enduring commitment to experiment.

Wayne Shorter’s Quartet were introduced as “the greatest jazz band on the planet”. It’s an unexceptional thing, like the Rolling Stones being introduced as “the greatest rock’n’roll band in the world”. But unlike the Stones, who really haven’t done anything new or vital since the 1970s, Wayne Shorter and his cohorts, pianist Damielo Perez, bassist John Patitucci and drummer Brian Blade, who have been with him for a decade or so, have relentlessly magicked wonderful new music out of the air. Now 80, he doesn’t seem to be running out of steam just yet.

Five minutes into this concert, at that stage a polite cello and piano duo, there was a raucous bellowing from the rear, so loud that the front stalls leapt. The delicate cello spiccato continued, despite the persistent bellowing. Gradually, the musicians adapted to the new sound, and to widespread astonishment, Senegalese singer Mola Sylla, chanting in Wolof, descended through the stalls onto the stage.  

In a fascinating interview with the singer-songwriter Joni Mitchell, published in The Los Angeles Times in June 1979 around the release of Mingus, Mitchell signs off with the following aperçu. “You know, pigeonholes all seem funny to me. I feel like one of those lifer-educational types that just keep going for letters after their name. I want the full hyphenate – folk-rock-country-jazz-classic...so finally, when you get all the hyphens in, maybe they'll drop them all and get down to just some American music.”