No relation of his famous namesake, Boris Tchaikovsky (1925-1996) was a younger contemporary of Shostakovich, who much admired his chamber music. Tchaikovsky’s 1962 Piano Quintet is in many ways a remarkable work: trenchant in tone, it flanks two scherzos with a pair of slow movements, each of which generates considerable force by ringing changes on a single rhythmic pattern. The War Suite, for string quartet and clarinet, derives from the soundtrack to a 1964 film about love and loss during the second world war, and is essentially a big melancholy rondo, in which the repetitions of an initially banal waltz become increasingly poignant as the tone and harmonies of the interwoven episodes gradually darken. The performances, recorded in Moscow during the Vanbrugh Quartet’s 2012 visit, are exceptional. Pianist Olga Solovieva joins them for the Quintet. Maxim Anisimov is the lyrical clarinettist in The War Suite.