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.

Nigel Simeone’s engaging study of Bernstein’s score of West Side Story could almost be entitled “Collaboration: The Manual”, so deftly does it interweave Bernstein’s originality with the contributions of his stellar team-mates. Jerome Robbins conceived, choreographed and directed the Broadway show; Arthur Laurents wrote the book; Stephen Sondheim, in his first Broadway outing, wrote the lyrics; Hal Prince came in at a late stage when the original producer quit. (“It’s about a bunch of teenagers in blue jeans...a cast of total unknowns, and it ends tragically.”)

One girl can hit a high C, and how; the other would surely melt the iciest-hearted in Rodgers and Hammerstein torchsongs. That's Roberta Alexander, on the evidence of her "Somewhere" last night. Together with classy lyric-coloratura Claron McFadden, the beaming high Cs girl, and sophisticated pianist-animateuse Reinild Mees, she ran the gamut of Bernstein's song-and-dance cornucopia. With such physical ease and high spirits from these total artists, even the occasional archness in Lenny's heart-on-sleeve songbook passed with a relaxed sense of fun.

theartsdesk.com presents The Seckerson Tapes, a series of live and uncut audio interviews from acclaimed broadcaster Edward Seckerson. We start with Jamie Bernstein - Leonard Bernstein's eldest daughter - who has been in London launching the year-long Bernstein Project at the South Bank. Seckerson, a long-standing Bernstein devotee and disciple, sat down for a frank and open discussion about exactly who her "dad" was.