It was one of those moments that every conductor (and orchestra) dreads: “The Procession of the Sage” from Stravinsky’s The Rite of Spring is in rip-roaring full cry, percussion grinding and scratching, high trumpet screeching – but Daniele Gatti, it would seem, loses a bar somewhere and gives his Orchestre National de France a premature cut-off, leaving the entire brass section between a rock and a hard place. Stop or play on? An ignominious collapse ensues – as big a blunder as I’ve heard in any professional concert in years. Who says The Rite of Spring no longer has the capacity to shock?

"There is not one idea," wrote that intemperate critic Eduard Hanslick about Richard Strauss's Till Eulenspiegel, "that does not get its neck broken by the speed with which the next lands on its head." Rather a compliment, I've always thought, and certainly so as applied to James MacMillan's new Violin Concerto. As soloist Vadim Repin and conductor Valery Gergiev whirled us tumultuously through its hyperactive songs and dances, there was so much I wanted to savour, to hear again. That won't be a problem.

Heading up this month's classical selection is a 16-CD budget box set of the complete works of Frédéric Chopin, issued to celebrate the 200th anniversary of the consumptive Pole's birth. Plus we review a rare piano concerto by Ralph Vaughan Williams, a disc of even rarer string orchestra works by the post-war Polish composer Grażyna Bacewicz, a fresh coupling of the Debussy and Ravel string quartets, a new version of Bruckner's mighty Eighth from the French-Canadian wunderkind Yannick Nézet-Séguin and two sets of historic recordings conducted by "Glorious John" Barbirolli.

Is it a bird? Is it a plane? No, it’s Valery Gergiev shimmying his way through Ravel’s Daphnis and Chloe. There he was, London’s loosest-limbed maestro, back on the Barbican podium (just about) with the London Symphony Orchestra, after a summer flogging his chaotic Ring Cycle around the globe, returning to more favourable ground, an all-French programme of Debussy, Dutilleux and Ravel that had his dancing juices flowing and his legs a-leaping. Certainly, there’s no gainsaying his moves. The question is were they being put to good musical effect?