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In 1819 the Viennese music publisher and composer Anton Diabelli sent a short waltz to a long list of composers. These included Schubert, Hummel, a very young Franz Liszt and, as the most prominent composer of the time, naturally Beethoven. Diabelli was proposing to compile an anthology of variations on his own waltz, one from each composer. Beethoven responded in a characteristic manner: first there was nothing, and then there was nothing … and then, in 1823, there was an entire, and monumental, set of no less than thirty-three variations.