Have Proms audiences heard it all before? Not by the longest of chalks. Remarkably, last night saw the festival’s first outing for a major work by Robert Schumann.

György Kurtág is 97 and the last man standing of the post-war generation of avant-garde composers. Last night the Proms staged the UK premiere of his first opera, started in his eighties and premiered in 2018, a setting of Samuel Beckett’s typically mystifying play Endgame. Sadly, for all the brilliant passages of orchestral writing, and top-notch singing and playing, as an opera it’s a bit of a damp squib in which some minutes hung heavy.

Chopin’s piano concertos and Strauss “symphonic fantasia” Aus Italien are young men’s music, bursting with inspired ideas, but baggy at times, hard to steer. Elgar’s In the South is up there with the mature Strauss tone poems – even if it couldn’t have taken the shape it did without them – but here the steering itself was the problem: missing the exuberance, the Philharmonia’s Principal Conductor Santtu-Matias Rouvali stretched it on the rack.

The Budapest Festival Orchestra never stops proving what a great ensemble it is. In last night’s concert, the third Prom of its weekend residency, the miraculous ways in which the absurd humour of Ligeti, the deep soulfulness of Bartók and the implacable genius of Beethoven were brought to the surface were not just joyful and completely fulfilling, but also unfailingly drew in the attention of the whole audience in a completely full Royal Albert Hall.

It would be worth travelling a long way to hear the Budapest Festival Orchestra giving such a lithe, athletic performance under its founder and Music Director Iván Fischer of Glina’s Ruslan and Lyudmila Overture. That was the Radio 3 and Proms Audience Choice from 19 overtures and preludes whittled down to three. What happened next, despite some equally lustrous playing, didn’t always work so well.

“Very traditional, but fun,” ran the verdict of one fellow-traveller as we waited for a bus outside the Royal Albert Hall on Saturday night. No one can gainsay the infectious fun that the Budapest Festival Orchestra bring to every gig. For all its musical accomplishment, Iván Fischer’s all-singing (yes, they did) if not quite all-dancing (yet) outfit never forget that they belong to a, rather elevated, branch of show business.

“There will be more incense,” promised Glyndebourne Music Director Robin Ticciati of the company’s annual visit to the Proms. He was talking to my Opera Zoom class between the final rehearsal and first performance of Poulenc’s great masterpiece about the martyrdom of Carmelite nuns during the French revolution, as directed by Barrie Kosky with unsparing horror and humanity. And now here was the operatic company of the year taking its final bow after a sellout run in Sussex.

Programming works from the same decade – in this case the 1940s – can reveal fascinating contrasts: what an impressive gulf, for instance, between two masterpieces by Hindemith and Strauss in this first half, and what sensitivity to very different styles from the NYOGB under Carlos Miguel Prieto. Be careful what you choose as the big symphony, though. I’d always had my doubts about Copland’s Third, and though it couldn’t have been more compellingly lit and shaped, it paled by comparison.

Yuja Wang and Klaus Mäkelä, two of the classical world’s biggest hitters, have recently united to make that even more powerful item, the “power couple”. But much as they are both photogenic and charismatic, their reputations are also based on musical excellence, as was on display at last night’s sizzling Prom.

It stunned me to discover that last night was only the sixth time Carmina Burana had been heard at the Proms. It seems tailor-made for the festival: large-scale and bombastic in a way that fits the proportions of the Albert Hall, familiar to occasional concert-goers but with much more to it than the "famous bit". And in this performance the CBSO and an array of choirs went at it with gusto, raising the audience to its feet at the end.