This is a three-voice fugue. The theme (subject) inexplicably changes its rhythm partway through. The initial rhythm of the four theme entries in m. 1, m. 2 beat 3 off-beat, m. 5 beat 1 off-beat, and m. 6 beat 3 off-beat features a dotted note, but subsequent theme entries lose the dot and become two sixteenth notes.

In m. 20, the theme appears in inversion. The bass entry from beat 2 off-beat is this theme. Numerous fragments of the theme also appear, such as in the soprano in m. 21.

As a performance hint for this Allegro, it is advisable to ensure that every theme entry is clearly audible, including fragments (incomplete themes). Please note that there are also versions where the final note (beat 4) does not necessarily ascend, as seen in the soprano in m. 31 beat 1 off-beat.

The piece itself conveys a sense of dignity, and should be performed in a neutral mood, neither expressing sadness nor optimism, but rather proceeding in a detached manner.