Beethoven, Complete Piano Trios vol. 1: Op. 1 Nos. 1 & 3, Op. 11
When Beethoven left Bonn for Vienna in 1792 he was already an experienced composer: his first published composition, the Dressler Variations WoO 63, was issued in 1782, followed the next year by a set of three Piano Sonatas now known as WoO 47 and some minor works, and, in 1791, by the virtuosic Righini Variations WoO 65. These early publications were only the tip of the iceberg, and there is evidence that during his time in Bonn he composed in a wide variety of genres, including concertos, cantatas, and chamber music. Nevertheless, many of the works that Beethoven had finished before his arrival in Vienna remained unpublished until after his death.