Plot: ‘Nicola Benedetti – now, she really can play,’ says the American composer, trumpeter and all-round jazz legend Wynton Marsalis, and after Benedetti gave the world premiere of the concerto that he composed for her in 2015, The Guardian wrote of her ‘sparky performance’. Thomas Søndergård and The Royal Scottish National Orchestra gives its Proms premiere tonight: the big, generous heart of a concert with a spring in its step, that opens with Thomas Adès’s wonderfully sleazy Powder her Face suite and ends amid the headstrong urban energy of West Side Story