This movement is certainly conceived with instrumental music in mind. The section where it shifts to octaves (measures 13-16) suggests an expansion of the instrumental ensemble. Aside from this section, one might imagine rapid string instrument movements.

There is advice regarding the melodic line: even in sections like measure 6, where 16th notes are introduced, the strong beats form the melodic line. In this case, it would be B, C, D.

The same applies to measures 9-16. However, unlike measure 6, specifically in measures 9-12, there is a high probability that the repeated notes, known as a pedal point (or organ point), will be played with the first finger. Since the first finger is the strongest, there is a risk that the repeated notes will sound too prominent.

As the repeated notes are played with the first finger only in measures 9-12, try practicing this section slowly, playing the melodic line fortissimo and the repeated notes pianissimo.