query: When did Beethoven write his first piano sonata?
passage: Piano sonatas (Beethoven)
Ludwig van Beethoven wrote his 32 piano sonatas between 1795 and 1822. Although originally not intended to be a meaningful whole, as a set they compose one of the most important collections of works in the history of music.[1] Hans von Bülow called them "The New Testament" of the piano literature (Johann Sebastian Bach's The Well-Tempered Clavier being "The Old Testament").[2]
passage: Piano Sonata No. 29 (Beethoven)
Dedicated to his patron, the Archduke Rudolf, the sonata was written primarily from the summer of 1817 to the late autumn of 1818, towards the end of a fallow period in Beethoven's compositional career. It represents the spectacular emergence of many of the themes that were to recur in Beethoven's late period: the reinvention of traditional forms, such as sonata form; a brusque humour; and a return to pre-classical compositional traditions, including an exploration of modal harmony and reinventions of the fugue within classical forms.