a: It consists of two eight-bar musical phrases. The first half of the sentence is four bars, and then the same second half is written to form a large eight-bar musical phrase, which is then repeated to form a ten-bar phrase. A six-bar section. Of course, Chopin's repetitions always add decoration and changes to the melody.

b: This is a paragraph that is compared with paragraph a, but the contrast is not obvious at first.

Reappearance a: Same as the previous a, but with a counterpoint melody added in the next eight bars.

Small coda: The accompaniment pattern has not changed, and the melody is composed of sixteenth notes.