D major, Sonata form, 4/4 time signature.

The principal theme, consisting of 7 measures, is characterized by motives employing arpeggiated figures and rhythmic figuration, as well as motives based on descending scales. Following a transition (from m. 8), the subordinate theme (from m. 13) is presented in the dominant key of A major and is repeated by a repeat sign.

In the latter half (from m. 20), after a process of returning from the dominant key to the tonic key, utilizing motives from the principal theme and the transition, the principal theme (from m. 36) and the subordinate theme (from m. 51) are recapitulated in the tonic key, and the latter half is repeated by a repeat sign.