Bach’s Art of Fugue, or maybe Mahler’s Nin^th? Nah - in my book, Rachmaninov’s Symphonic Dances is the greatest last work ever composed. This extraordinary piece gets everything right: a kaleidoscopic summing up of a long career which never lapses into dewy-eyed nostalgia.

Live exposure to centenary composer Leonard Bernstein's anything-goes monsterpiece of 1971, as with Britten's War Requiem of the previous decade, probably shouldn't happen more than once every ten years, if only because each performance has to be truly special. It's been nearly eight since Marin Alsop last conducted and Jude Kelly directed MASS at the Southbank Centre.

The Royal Ballet last night presented an evening of Bernstein-scored ballets, two of them premieres by Wayne McGregor and Christopher Wheeldon and the other a revival of Liam Scarlett's 2014 Age of Anxiety.

Leonard Bernstein is 100 already. Actually, he’s not – his centenary falls in 2018, but the LSO, an orchestra he conducted many times, is building up to the anniversary with a series of concerts featuring his three symphonies.

Amen. The end – of a prayer, a service, even the Bible itself. But what, asks Leonard Bernstein’s Symphony No 3, Kaddish, if “Amen” is the beginning and not the end, the start of a conversation that hears the divine word and doesn’t say “So be it” and accept, but instead answers back?

It was a topsy-turvy evening. Sometimes the things you expect to turn out best disappoint, while in this case the relatively small beer yielded a true "Little Great" of a production and the best singing in Opera North's latest double bill (subject to reshuffling during the rest of the run).

The first day of rehearsals for The Little Greats was thrilling and terrifying in equal measure: the casts of six shows, the whole chorus, all the creative teams and management milling around and talking nineteen to the dozen in the big, reverberant Linacre Studio at Opera North. Old friends, new colleagues – it was like a mixture of freshers’ week and a first night party. The noise was stupendous.

On 8 April 1952, screenwriters Betty Comden and Adolph Green were chatting to Charlie Chaplin at a party when he started raving about a picture he’d seen the previous night at Sam Goldwyn’s house. It was called Singin’ in the Rain – had they heard of it? “Heard of it? We wrote it!” But then, this dynamic duo had form: five years earlier they wrote On the Town.

Gražyna Bacewicz: Chamber Music Diana Ambache and friends (Ambache Recordings)

The last time BBC TV headed over to West Side Story, it landed itself with a contradiction. Christopher Swann’s 1985 fly-on-the-wall documentary The Making of West Side Story – about Leonard Bernstein recording his celebrated score with a cast of opera singers – bagged the prestigious Prix Italia, but the actual material was a wildly unidiomatic misfire. The reverse was true of BBC2’s Boxing Day special West Side Stories – The Making Of A Classic.