This submission for the PhD degree at the Elder Conservatorium of Music, University of Adelaide, made in two volumes in the form of a portfolio of recorded performances supported by an explanatory exegesis, presents the first complete set of recordings of all fifty solo keyboard sonatas by Leopold Koželuch. While a great deal of scholarly research and recorded performance has been devoted to the keyboard music of Haydn, Mozart, Beethoven and Schubert, and these composers have deservedly come to represent the pinnacle of the late eighteenth and early nineteenth-century Viennese keyboard tradition, many of their contemporaries have suffered unjustifiable neglect. One such Kleinmeister is the Bohemian Leopold Koželuch. In the latter part of th...