Schubert composed this work in late 1822, just after breaking off work on the
Unfinished Symphony while sketching its incomplete scherzo. It was written for and dedicated to Carl Emanuel Liebenberg von Zsittin, who had studied piano with
Johann Nepomuk Hummel, in the hope of some remuneration from the dedication. It is not only a technically formidable challenge for the performer, but also a structurally formidable four-movement work combining theme-and-variations with sonata form. Each movement transitions into the next instead of ending with a final definitive cadence, and each starts with a variation of the opening phrase of his
lied "
Der Wanderer"(D 489). The second movement, marked "adagio," states the theme virtually identically as it is in the song, whereas the three fast movements begin with variants in
diminution (shortened note values): the first movement, "allegro con fuoco ma non troppo," a monothematic sonata form in which the second theme is another variant; the third, "presto," a scherzo in triple meter; and the finale, marked simply "allegro," starting as a quasi-fugue and growing increasingly demanding on technical and interpretive skills as it storms on to its conclusion. == Structure ==