The original theme spans measures 1-16; a thorough understanding of this section will allow the subsequent variations to simply follow its flow.

Measures 1-16 are divided into measures 1-8 and measures 9-16. While these two sections may appear similar, the harmonies in the latter half of each differ.

First, in measures 1-8, phrases progress in two-measure units. Generally, it is understood that the tension increases as the music progresses. When comparing measures 1-2 and 3-4, although measures 3-4 are higher in pitch, harmonically they present a more tranquil harmony. The decision regarding dynamics in this area is left to the performer's discretion.

In measures 5-6, the tension clearly heightens, reaching its peak in measures 7-8. Performers should determine the dynamics based on this progression. Then, at measure 9, the volume should be reduced again to p or pp, and the direction should be set towards measure 16.

Subsequent variations will proceed with the dynamics established in these theme sections.