Beethoven's musical style
The compositions that Beethoven wrote in his formative period can be generally characterized by the composer's efforts to master the predominant classical language of the period. His works from this period can be subdivided into two, based on the composer's residence. First, various juvenalia, written when the adolescent Beethoven was in residence in Bonn and heavily indebted to the works of contemporaries, especially Mozart and his teacher, Christian Gottlob Neefe. These early efforts can be seen in a set of three piano sonatas and piano quartets (WoO 36) that Beethoven wrote before 1792. The Quartets, for instance, are each specifically modelled after three Violin sonatas Mozart published in 1781 – K 296, 379 and 380 – and Beethoven would later draw upon this familiarity in the composition of several of his own Violin Sonatas.
Ludwig van Beethoven
By 1793, he had established a reputation as an improviser in the salons of the nobility, often playing the preludes and fugues of J.S. Bach's "Well-Tempered Clavier". His friend Nikolaus Simrock had begun publishing his compositions; the first are believed to be a set of variations (WoO 66). By 1793, he had established a reputation in Vienna as a piano virtuoso, but he apparently withheld works from publication so that their publication in 1795 would have greater impact. His first public performance in Vienna was in March 1795, a concert in which he first performed one of his piano concertos. It is uncertain whether this was the First or Second. Documentary evidence is unclear, and both concertos were in a similar state of near-completion (neither was completed or published for several years). Shortly after this performance, he arranged for the publication of the first of his compositions to which he assigned an opus number, the three piano trios, Opus 1. These works were dedicated to his patron Prince Lichnowsky, and were a financial success; Beethoven's profits were nearly sufficient to cover his living expenses for a year.