The main key is D minor, and the form is binary.

A [a (measures 1-8) + a1 (measures 9-16)]

B [b (measures 17-24) + b1 (measures 25-32)]

The theme is 8 measures long and has a two-part structure. First, in measures 1-4, a two-measure motif ascending with small stepwise (second-degree) motion is repeated, and in the latter half, measures 5-8, it modulates to the relative major, F major. The dominant ninth chord formed by the notes C#, G, and B, seen on the first beat of measure 1 and elsewhere, is a harmonized appoggiatura. If one attempts to express this chord with the tension characteristic of a dominant, the melody becomes uneven. Therefore, it is preferable to express this passage as a passing motion, without emphasizing its functional harmony. Section 'a' is repeated; while the first half concludes with an imperfect cadence, the latter half features a perfect cadence in F major, further emphasizing the brightness of the major key.

Section B returns to D minor. The first half develops around a peak-shaped motif containing the appoggiatura chord, which is part of the theme. The latter half features a descending progression similar to the latter half of section 'a', but it concludes in the tonic key without modulating to the relative key. This sub-section 'b' is repeated.