It’s a fair bet that more people now know Harmonielehre as the title of the 1985 orchestral blockbuster by John Adams than the composition manual written by Schoenberg in 1922. Even the title is “typically, ironically John”, as Sir Simon Rattle remarked in a pre-concert interview introducing the YouTube film of the concert. The piece has swallowed up its object of parody.

Vibrant rustic dancing to conclude the first half, a heavenly barcarolle to cast a spell of silence at the end of the second: Bernard Haitink's 90th birthday celebrations of middle-European mastery wrought yet more magic in Dvořák and Mahler after his first concert of Mozart and Bruckner.

So this is how Bruckner's Fourth Symphony should go. It's taken a master conductor just past his 90th birthday and an orchestra on top form to teach me. No doubt Claudio Abbado and Brucknermeister Gunter Wand could have done so, too, but I never heard them live in this, the "Romantic", and they are no longer with us.

Would Verdi and Puccini have composed more non-operatic music, had they thrived in a musical culture different to Italy's? Hard to say. What we do know is that they both became absolute masters of orchestration – Puccini rather quicker than Verdi, living as he did in an entirely post-Wagnerian era.

In a way, he was a second Bernstein.

The arc of Daniil Trifonov’s reputation has soared and then, to some ears, stalled in a familiar modern way. Russian Wunderkind pianist bags a sackful of competition trophies (Rubinstein, Tchaikovsky prizes; Gramophone Awards). Early recitals and recordings display stupendous technique allied to audacious, beyond-his-years interpretation. Hype shoots off the scale.

Schumann revitalized by John Eliot Gardiner and the London Symphony Orchestra last year left us wanting more: namely two of the four symphonies (transcendently great, as it turns out from these revelatory performances). But those concerts also guaranteed that the ones a year later would be the most vital tonic imaginable for grey, damp early February.

Bartók’s Music for Strings, Percussion and Celesta and Bruckner’s Sixth Symphony: few other conductors could get away with programming two such monolithic works, but Simon Rattle has a lightness of touch that can leaven even the weightiest musical utterances. Bartók dances, Bruckner sings.

With the London Symphony Orchestra often playing like some commanding and relentless force of nature, Sir Simon Rattle steered two mighty avalanches of Nordic sound into a concert of granitic authority last night. However, I suspect that many people will have left a packed Barbican thinking most of the uncanny winter wonderland that separated these two mountainous symphonies.

When the biggest laugh in Bernstein’s Candide goes to a narrator’s mention of how nationalism was sweeping through Europe, you may have a problem. Still, the Bernstein Centenary has been among the best of all possible anniversary celebrations this year and at the LSO Candide - the great man’s bonkers operetta-ish take on Voltaire, a flawed masterpiece with a succession of glorious tunes and snappy lyrics - could have been its apex. At times, it was.