If the bust of Sir Henry Wood that watches over the stage of the Royal Albert Hall had come to life, Commendatore-like, during last night’s concert, I can’t help feel that he would have been smiling. Beethoven nights – once a popular Proms fixture – have lately fallen off the calendar, but alongside various nods to tradition have this year returned. Following Jiří Bělohlávek and Paul Lewis’s recent concerto-fest, Paavo Järvi and the Deutsche Kammerphilharmonie Bremen last night presented a second all-Beethoven programme.

Two pianists, one indisputably great and the other probably destined to become so, lined up last night to show us why the Proms at its best is a true festival, not just a gaggle of summer concerts. First there was the prince of pearly classicism, Paul Lewis, consolidating the democratic Beethoven he’s already established on CD withJiří Bělohlávek and the BBC Symphony Orchestra. Then along came the queen of romantic night, Maria João Pires, to unfold a late-night brace of Chopin nocturnes.

York is a bit like Oxford, I’ve always thought: that perplexing contrast between the central squares and marketplaces, in all their twee glory – all aimless, besatchelled French students and anoraked tourists queuing for tea at Betty’s – and the simply glorious architecture and hidden back streets, from the ever-breathtaking splendour of the Minster to the endless succession of tiny hidden churches that inhabit every other corner. You could, potentially, hate it, but you always come away feeling pleasantly surprised, and surprisingly inspired.

Numerologists may have been fretting over whether Proms forces could match the apocryphal thousand of the mightiest Eighth Symphony's 1910 world premiere, which Mahler feared would turn into a "catastrophic Barnum and Bailey show". With nothing like 350 in the children's chorus, for a start, not a chance.

So most of us blinked and missed Martha Argerich gliding into Kings Place's Argentine celebrations last week. Yet here I am writing again about this liveliest of venues' Chopin marathon, and like a would-be Prommer who joins the last night party without having been to the Albert Hall more than once in the season I'm culpable of marking the grand finale after experiencing only a slice of modest Cypriot pianist Martino Tirimo's 10 concerts devoted to our bicentenary boy. Never mind: both the encyclopedic recitals I did hear seemed to take us through a turbulent lifetime. That would be true just of the essence, the 24 Preludes which concluded last night's strange adventure. But there was much, much more to feel and think about.

It's been quite a week for youth and the vernacular in the world of so-called “classical” music. Multiply by four the seven fledgling stage animals currently firing up John Adams’s “earthquake-romance” in London's East End, add an orchestra of 13-to-24-year-olds from four continents, student dancers, amateur choirs young and old and just a handful of professionals, and that's only the starting-point for this hair-raising, goosebump-inducing, 500-strong performance of what many of us believe to be Bernstein's most cohesive masterpiece.