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. Hans von Bülow called them "The New Testament" of the piano literature (Johann Sebastian Bach's "The Well-Tempered Clavier" being "The Old Testament").
Albert Ketèlbey
Ketèlbey's early compositions are classical and orthodox in form, reflecting the training at Trinity College. The first substantial work was a piano sonata (1888); it was followed by a Caprice for piano and orchestra (1892), a Concertstück for piano and orchestra (circa 1893) and a piano concerto in G minor (1895). Ketèlbey's piano writing was notable for its brilliance, and the composer's own performance of the solo part of the Concertstück brought out that quality. As a student, Ketèlbey composed a cadenza for the first movement of Beethoven's First Piano Concerto, judged "clever and effective" in performance in 1890.