An organ chorale setting of the penitential hymn 'Erbarm dich mein, o Herre Gott', around four and a half minutes of slow, richly harmonised writing over sustained pedal tones. Sorrowful and prayerful, with the ornamented chorale melody unfolding at a contemplative pace. Fits confession and repentance scenes, sacred interiors, and sombre historical narration.