A minor,2/4 time. Following the typical pattern of the final movement of a classical multi-movement sonata, it adopts rondo form.

The frequently recurring main theme is centered on a melody characterized by rapid sixteenth notes and a distinctive responding rhythm. This main theme is skillfully interwoven with various episodes. The first episode, in C major, features a sparkling, lively melody in the high register, accompanied by triplet arpeggios. The second episode appears in G-sharp minor, presenting a repeated note figure combined in both melody and accompaniment, along with sixteenth-note motion similar to that of the main theme.

In the third episode, the movement slows to Andante, and motifs from the first movement are recalled, beginning with the appearance of the descending parallel thirds motive from the first theme.

As soon as the rapid tempo returns, the second episode is recapitulated in A minor and the first episode in A major, both interwoven with the main theme. The main theme reappears, accompanied by the descending parallel thirds motive, then breaks down into perpetual motion, leading to dissonant repeated notes played in triplets, bringing the piece to a fervent close.