The objective of the dissertation is to examine certain correlations between Busoni the philosopher and Busoni the composer. His aesthetic and theoretical points of view, which are of vital importance for an appreciation of his compositions, are reviewed. The manifestation of his musical thinking in his own compositional practice is substantiated through an analysis of two of his late works for the piano: the Sonatina seconda and the Toccata. In addition to the lecture recital, based on the dissertation and given on February 18, 1991, three other public recitals were performed. The first, on November 30, 1987, included works of Bartok, Brahms, Mozart, and Granados. The second program, a chamber recital on January 16, 1989, featured works by Brahms. The third recital was performed on April 23, 1990, and included works by Beethoven, Prokofieff, and Chopin.