Graeme Murphy's 2002 Swan Lake for Australian Ballet stitches together plot elements from Swan Lake, Giselle and Lucia di Lammermoor, among other things. No bad thing, that; such mash-ups can work well (see Moulin Rouge), and Matthew Bourne proved way back in 1995 that Swan Lake's story can be totally reconfigured and still work gloriously (we do not talk about the 2011 film Black Swan).

It shows you just how much Kenneth MacMillan changed ballet in this country that 1960's The Invitation, with its onstage rape, sexual grooming and child abuse, can act as the reassuring classic at the heart of the new Royal Ballet triple bill which opened on Saturday.

Looking past the ballets for Diaghilev, there are still many superb scores by Stravinsky honoured more in scholarship than performance. In Myths and Rituals, the Philharmonia addresses that lack of wider appreciation with five concerts from May to September. The series got off to a promising start last night with the tiny fanfare for three trumpets – Monteverdi with attitude and wrong notes – from 1955, which was one of Stravinsky’s first thoughts for his last ballet, Agon.

Appearing before theatres full of middle-aged women in just your underpants is certainly one way to throw a retirement party. It may not be everybody's choice, but then Carlos Acosta is not like everybody, and never has been.

In London, seeing the same ballet company do three different pieces in three different theatres over four nights would be some kind of festival. In Berlin, it's just business as usual – albeit quite a busy week! – for the hard-working Staatsballett.

One of the secrets to enjoying life is mastering the creative use of disappointment. Many in the Covent Garden audience last night were no doubt deeply disappointed not to be seeing Natalia Osipova's legendary portrayal of the title role in Giselle, injury having removed the Russian superstar from the opening night cast.

Perhaps the director of the Royal Ballet is a pigeon fancier? With this January run of The Two Pigeons following hard on the heels of one in November, the Royal Ballet's dancers have spent most of the autumn and winter practising the fluttering, preening and cooing of Ashton's featherweight and featherbrained romance, while anyone wanting to see both Monotones and Rhapsody - paired with Pigeons in November and January respectively - has had to shell out for two tickets and sit through two doses of Pigeons' exhausting whimsy.

When producing Cinderella, the main question is: sweet or sour?  That Prokofiev score is splendid, but it's no walk in a candy shop; in Act I the stepsisters have passages so scraping, spiky and dissonant that sugar-coating would seem to be out of the question. On the other hand, there's a Nutcracker-like family audience at the ready for pretty productions which skim lightly over the whole neglect and cruelty thing – but that leaves you with a story so bland that even Disney had to invent singing mice to perk it up.

It was business as usual in the British dance world in 2015. Looking back over the year, theartsdesk's dance critics see the industry's many talented, capable people continuing to do their jobs well, but we don't recall being shaken, stirred or surprised as often as in other years, or at least not by new works: our top moments of the year are concentrated in the farewells of great dancers Sylvie Guillem and Carlos Acosta, and in classic productions of classic ballets.

Christmas legends are not born; they are made. In the case of the Nutcracker, its Christmas indispensability in Britain and America stems not from the original 1892 St Petersburg production, but from 1950s reinterpretations by emigré Russians (Balanchine and Karinska in the US, Lichine and Benois in the UK). Like most other story ballets, there is no stable text - apart from the Tchaikovsy score, of course, but Balanchine was happy to cut and rearrange that too.