This fugue is an expression of sorrow and profound grief. The emotional theme gradually ascends from its initial note, peaking at a fifth above, and then descends. In addition to this theme, chromatic progressions are observed throughout, further intensifying the expression of sadness. The secondary subject, for instance, begins on the second beat of measure 3 and ascends progressively, incorporating chromatic motion, thereby expressing heightened emotion.

There are several peak points within the piece, towards which the music progresses over relatively long spans. This approach establishes a clear sense of direction. For example, when the bass theme commences in measure 15, the density of sixteenth notes gradually increases, marking the beginning of a build-up in tension.

This tension should be maintained until it ultimately culminates at the peak point in measure 22.

A high pitch does not necessarily indicate a peak point. For instance, in measure 38, the soprano ascends to B (H in German notation), but the lower voice is in the treble clef. This section is rather interpreted as an expression of sadness, marked by a piano dynamic. For your reference.