Milton Court’s new concert hall is a mighty small space, but the BBC Singers under their chief conductor David Hill were determined to launch their residency there with a musical epic of world events from Genesis to the post-nuclear era. And they carried it off triumphantly, if with some ear-singeing resonances, in American works from the last 66 years ringing with bright tonalities. The real surprise was to find Nevadan choral guru Eric Whitacre reaching for the stars as confidently, if not as consistently, as Steve Reich in his 1984 masterpiece The Desert Music.

When the going gets tough, wheel out a crowd-pleaser. Even by its own volatile standards English National Opera has had a poor start to its autumn season, with productions of Fidelio and Die Fledermaus that seem destined to join the company’s ever-growing chamber of unrevivable horrors. ENO’s cash-strapped board must therefore be lighting another candle to the late Anthony Minghella, whose glacially delicate Madam Butterfly is always good for an outing.

British theatre is obsessed with the new, with novelty. And one of the obvious casualties of this is old plays that are not by Ibsen or Chekhov. Plays that feature in every history of British theatre, such as Arnold Wesker’s 1959 classic, Roots, about the political and sentimental education of Beatie Bryant, with its uplifting final scene of her self-awakening. At last, this revival gives us all the chance to watch a legendary piece of our cultural history.

We know, not least through her own account, of Marianne Faithfull's colourful progress as winsome Sixties pop star, lover of Mick Jagger, junkie on the streets of Soho and her artistic rebirth as gravel-throated chanteuse. Here, her frequently gruelling trawl through archives from the 1930s and '40s helped to explain how she became the artist she is, while throwing up some morbidly fascinating details about the inner workings of the Third Reich.

Much hype has been whipped up around this tale of a gang of thuggish, racketeering bookies in Birmingham just after World War One. It's a pretty good cast, with Helen McCrory's Aunt Polly laying down the law within the criminal Shelby family, Cillian Murphy playing her ambitious nephew Tommy and Sam Neill as sinister Belfast copper Inspector Campbell. But this opener still felt a little wobbly on its feet.

BBC Four’s new series Sound of Cinema: The Music that Made the Movies is shocking. The overwhelming majority of arts-based TV consists of programmes consigning specialist knowledge/presenters to the sidelines in favour of dumbed-down, easily digestible generalisations mouthed by all-purpose TV-friendly faces. But this three-part series is fronted by, gasp, a composer who uses insider knowledge to hook and hold the viewers.

It was only today I learned that, for copyright reasons, it is impossible to use Martin Luther King’s iconic “I Have A Dream” speech in its entirety without paying a hefty licensing fee to his estate. That knowledge made it easier to understand why a new documentary to commemorate the 50th anniversary of the March on Washington seemed to gloss over its figurehead’s famous words.

The Bolshoi’s summer season in London has so far been straight-down-the-line trad: Swan Lake as an opener, Bayadère, Sleeping Beauty. Now, however, with Balanchine’s Jewels, they’ve at least dipped a pointe shoe into the 20th century, if rather cautiously.

The fascination of the East has been a constant in classical music’s history, from the jangling sounds of the Janissary bands to Mozart’s Seraglio, Sheherazade’s dreamy tales to Britten’s seductive gamelan. Last night’s Prom gave the East a chance to answer back, setting Nishat Khan’s new Sitar Concerto in dialogue with Vaughan Williams’s London Symphony – a musical portrait of a landscape rather closer to home.

It’s not a crowd-pleaser like Albert Herring, nor wittily fanciful like A Midsummer Night’s Dream or macabre like The Turn of the Screw and certainly not the classic that Peter Grimes has become, and until three years ago Glyndebourne had never even staged Britten’s Billy Budd. But Michael Grandage’s 2010 production was a sea-changer. Aided by Mark Elder in the pit, the director made his operatic debut with devastating simplicity, reminding us all of the power of this uneasy tragedy.