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The title music was not written specifically for the series, but was instead a witty piano piece, Shostakovich's Prelude No. 15 from his Twenty-four Preludes, Op. 34, played by Ronnie Lane.[1] It is a brisk staccato dance in 3/4 time in D flat major featuring running passages (some of them chromatic in nature) against a characteristic waltz-like background, which alternate between left and right hands. The final eight bars, marked pp, comprise long sustained chords and bring the piece to a quiet and subdued ending.