Perhaps those who came for the Argerich touch and left at the interval of this instant-sellout Prom were satisfied. After all, the legendary Argentinian pianist gave us some vintage minutes of her silk-spinning mercurialism.

Wisecracks can be profound. The late André Previn – who spent most of the period from his late teens to his mid-thirties working in film studios – once responded to a critic’s snub that the music of Korngold all sounded like Hollywood with the line: “No, Hollywood music all sounds like Korngold.”

The BBC National Orchestra of Wales’ second consecutive night at the Proms, accompanied by their associated National Chorus, ventured further out of the classical mainstream than the first. Where Wednesday night had seen a solid Germanic programme of Brahms, Wagner and Mozart Thursday saw a British world premiere and some enchanting Japanese music, alongside two meaty Russian classics.

Not every Prom has to push musical boundaries or bust concert conventions. On the face of it, last night’s programme from the BBC National Orchestra of Wales (and National Chorus of Wales) stuck to a thoroughly traditional recipe. Two familiar 19th-century orchestral warhorses cantered out for the first half, followed by a beloved choral blockbuster delivered by massive forces who engendered a big, hearty, hall-filling – dare I say Victorian? – sound.

This concert from the BBC Symphony Orchestra marked the first performance of composer Mieczysław Weinberg at the Proms, an important milestone in the recent surge of interest of his music. When Weinberg, a Russian composer of Jewish descent and Polish birth, died in 1996, he was little known in the West, and had fallen from favour in a post-Communist Russia that associated his music with its Soviet past.

Ben Gernon is only 30 (and looks about ten years younger) but has been Principal Guest Conductor of the BBC Philharmonic since 2017. He really impressed in last night’s Prom but, after an exciting overture, things fell away a bit with an under-nourished Rachmaninov concerto and an enjoyable if not faultless second half of Tchaikovsky.

I’m not quite sure that I should review this Prom, since I performed in it. Before anyone summons the white coats, let me clarify. As the encore to a mind-expanding evening, Finnish violinist Pekka Kuusisto returned to the stage with his band of folk musicians. He asked the audience to hum a sort of drone, and then sing open-mouthed, as they sung and played a traditional song. How did we do? OK, I thought.

Montrealers exude a particular kind of happiness and have wonderfully snappy expressions to convey it: “Chu correc”, means ‘I’m fine’, and “C’est l’fun” means...exactly what it looks like.

While we wish the great Mariss Jansons a speedy recovery, no-one of sound heart and soul could be disappointed by his substitute for the two Bavarian Radio Symphony Orchestra Proms, Yannick Nézet-Séguin, whose supreme art is to show the score's construction in the face, with gestures to match.

Hello sun, hello great whales, hello choral counterpoint. If there is a more life-enhancing work than Joseph Haydn’s oratorio The Creation, I’ve yet to hear one. Its sheer joie-de-vivre was a felicitous arrival at the Proms, where it really ought to be a regular fixture.