Tchaikovsky competition winner Jennifer Koh, says The Strad, is “risk-taking, high-octane player. A scorching talent that should on no account be missed…” Experience her astonishing artistry in Tchaikovsky’s blazing Violin Concerto. The Block by composer, artist and activist Carlos Simon is a musical portrait of the buildings lining one Harlem street. And the 150th birthday of the English master Ralph Vaughan Williams is marked with a performance of the turbulent Sixth Symphony of 1948, his reaction to the last World War.