No one composer is at the centre of this fascinating story, but a larger picture emerges of a shift in musical scenery, from the world of the innocent Romanticism of Berlioz and Schumann to the more potent musical politics of Wagner, and of his antidote (as many saw him), Brahms. Why 1853? For many leading composers this year brought far-reaching changes to their lives: Brahms emerged from obscurity to celebrity, Schumann ceased to be an active...