Norman Lebrecht, the seasoned and ever-alert musical commentator, thinks he and his readers may have uncovered someone making a very good stab at being Mozart. Three pieces have been discovered on the internet DIY-video channel being played by a pianist whose face can't be seen, all purporting to be new or obscure works by Mozart, Haydn and Mendelssohn.

When the subject of funding for the arts arises, the phrase “allowed to fail” is frequently heard: artists must be enabled to try new things, press against the outer edges of what they know. Enter Anne Teresa De Keersmaeker and Jérôme Bel, two of contemporary dance’s thinkers. They have tried, and failed, to choreograph the final section of Mahler’s Das Lied von der Erde, and in that attempt, they have produced an extraordinary evening: the anatomy of a failure.

Having blazed a trail through choral music, Simon Russell Beale now focuses his attentions on the symphony in this new four-part series. At last able to put aside the mind-games and chicanery of his role as Home Secretary William Towers in Spooks (RIP), Beale emerged as an engaging and enthusiastic host in this opening episode. He wore his erudition with an ironic twinkle as he toured the garrets and palaces of Europe on the trail of Haydn, Mozart and Beethoven.

Older pianomanes may lament the passing of the great Russian schooling that gave us the likes of Sofronitsky, Yudina and Richter. I'm not so sure. The younger generations may have dropped the mystic torch, but their more even-tempered approach can beguile. Yevgeny Sudbin forms the current holy trinity with Boris Berezovsky and Nikolai Lugansky. His latest Wigmore recital was revelatory, not always in a good way; that broad beam needn't have swept every corner of the broad Russian church he so singularly constructed in the programme's second half. But anyone who can make Liszt sound as lucid as Haydn is unique.

A tall and exceptionally striking Valkyrie of a blonde, Alison Balsom (b 1978) is the polar antithesis of a hard-drinking, slightly tubby, very male trumpeter from central casting. For the photoshoots which fetch up on her CD sleeves, and public performances such as Last Night of the Proms in 2009 and this month’s Classic Brits, she pours herself elegantly into a series of dresses in the style of a hot young violinist kidnapped by the marketing department. But there is of course a great deal more to Balsom.

It’s string-quartet Saturday – a young German group tackle Soviet classics and a rejuvenated Russian quartet smile with Haydn. There’s music from a contemporary Polish master and exquisitely uncomfortable fin-de-siècle music from Vienna.

Today we’ve Easter-themed music from Haydn and a rare chance to hear some delectable Grieg played by an old master. A kitsch Russian classic is given a new slant, and two Italians have serious fun with Gershwin.

Send in the clowns. Or at least that was Vladimir Jurowski’s musical thinking in bringing together the mighty foursome of Prokofiev, Stravinsky, Haydn and Shostakovich and seeing just how far their capricious natures might take us. The allusions and parodies came thick and fast and just when you thought there was no more irony to tap, in came the most outrageous instance of misdirection in the history of 20th-century music: Shostakovich’s Sixth Symphony. And that is no joke.

An “Army of Generals” suggests a kind of supergroup, a fighting force made up of leaders rather than followers. If Charles Hazlewood’s band, which has just started a residency at Bristol’s St George's, is such a host, then he presumably is the Generalissimo, primus inter pares, whose mastery is exercised with a showman's display of almost innocent ego.