First Movement: G minor, 2/4 time, Sonata Form

The exposition takes on a very concise structure, as follows:

• A main theme consisting of 8 measures,
• The theme's confirmation (m. 9–) and transition (m. 13–),
• A subordinate theme appearing in the relative major, B-flat major (m. 16–),
• Followed by a transition (m. 25–) and a coda (m. 30–).

In the development section (mm. 34–63), material from the subordinate theme takes center stage. From measure 54, the dominant (D) of the tonic key appears as a pedal point in the bass, preparing for the recapitulation of the main theme in the tonic.

In the recapitulation (m. 64–), both themes are restated in the tonic key, and the subordinate theme, which was presented in the relative major, is transposed to the minor. In the coda (m. 97–), the motive of the subordinate theme is repeated in the lower register, and the movement concludes with a chord in the parallel major. The so-called Picardy third here can be considered a conscious connection to the second movement, which is in G major.