Bach: Christmas Oratorio Dunedin Consort/John Butt (Linn)

Thomas Søndergård stood in for this concert at a day’s notice – Valery Gergiev is apparently recovering from a knee operation and unable to travel. He left behind a curious programme, centred around Prokofiev’s quirky but dour Sixth Symphony. It’s a difficult work to schedule, but Gergiev added two sweeteners, Tchaikovsky’s Romeo and Juliet and First Piano Concerto. Søndergård clearly has the measure of all three works, and all came off well, making this concert, his first appearance with the London Symphony, an impressive debut.

Christmas - in the shape of Peter Wright's Nutcracker - has arrived earlier than usual at the Royal Opera House. This is to make space for a 70th anniversary run of The Sleeping Beauty that starts on 21 December: the two will run in tandem through the holiday period, scheduling that assumes audiences can't get enough of Tchaikovsky-and-tutus at Christmas. And I'm sure they can't, when the purveyors of said delights are the Royal Ballet.

What a relief to find Semyon Bychkov back on romantic terra firma after his slow-motion Mozart at the Royal Opera (performances speeded up somewhat, I'm told, after a sticky first night). On his own, dark-earth terms, there's no-one to touch him for nuanced phrasing, strength of purpose and the devoted responsiveness he wins from the BBC Symphony Orchestra - foot-stamping its approval at the end, a rarity - in Tchaikovsky and Rachmaninov.

The reception of Kenneth MacMillan's ballet Anastasia has some similarities with that accorded the Berlin asylum patient who some believed to be the lost Romanov Grand Duchess. For supporters who wanted to believe in the fairytale, Anna Anderson's awkwardness, her lack of Russian, her facial dissimilarity to the Tsar's youngest daughter, could all be turned to postive account; her unlikeness became evidence of likeness.

Australian Ballet's cinema broadcast on Tuesday night appears to have been a little under-publicised – at least in my local multiplex, which was deafeningly empty with just five spectators.

If ever there was a Prom to put London’s classical crowd in their place, to remind us (as those outside the capital so frequently and justifiably do) that the city isn’t the be-all and end-all of concert-going, then this was it. It featured three major debuts – all of them overdue, two of them musical hand-me-downs from Birmingham.

If the BBC were to plan a Proms season exclusively devoted to youth orchestras and ensembles, many of us would be delighted. Standards are now at professional level right across the board. 20 years ago, the National Youth Orchestra of Scotland (★★★★★) couldn't compare with its Great British counterpart; now, although the age ranges are slightly different and the (or should that be the) National Youth Orchestra (★★★★) has vast wind and brass sections, playing levels appeared equal.

Concert halls, as Gregg Wallace might observe if he ever went to one, don’t come much bigger than the Royal Albert Hall, nor violin concertos than the Tchaikovsky. Faced with this awesome combination, the temptation for a soloist is to play up to the occasion. Volume gets louder, vibrato faster, emotions are amped. But not for Pekka Kuusisto. This Finnish violinist has always gone his own way, as likely to be found playing jazz, electronica or folk music as a concerto, and his Tchaikovsky last night was no different.

"If you know anything about dance," I was told last night by an aged balletomane at the Royal Opera House, "you know that Russian ballet companies are the best." If this is true then the Bolshoi Ballet, biggest of the Russian companies, in Swan Lake, that most quintessential of ballets, must be awe-inspiring.