In G major, in a single-part form.

A [a (measures 1-4) + a1 (measures 5-8)]

The first four measures conclude with a half cadence, and the latter four measures with a perfect authentic cadence, but the theme is common to both sections. In the first four measures, the left-hand movement exhibits melodic elements, as seen in the three-measure descending stepwise motion and the passing tone in measure 4. Therefore, the left hand can be regarded not merely as an accompaniment but as a quasi-melody, and thus should be expressed polyphonically.