S11.19. Ach Herr, mich armen Sünder, BWV 135, first phrase of chorale melody, as used in (a) final chorale (mvt. 6), mm. 1–2; (b) ritornello of opening chorus (mvt. 1), mm. 1–5; (c) first vocal passage in opening chorus (mvt. 1, mm. 14–20)