Eight separate chorus parts (Coro I: Soprano no. 3, Alto no. 12, Tenore no. 2 and Basso no. 2; Coro II: Soprano no. 3, Alto no. 2, Tenore no. 2 and Basso no. 2) of the numbers selected by Mendelssohn for the 1829 performance of J. S. Bach's 'Matthäus-Passion. Copied by several early 19th-century professional hands from MS. M. Deneke Mendelssohn c.68. Cues were underlined in red ink. The chorale 'Wer hat dich so geschlagen' (numbered 19a, = 37 in NBA II/5) was added in the hand of E. Henschke for the Leipzig performance of 4 Apr 1841 (in all except the 2 bass parts), and is stitched in place (fols. 8, 24, 41, 70, 86 and 102). The parts are said to be one of the sets used for the performance by Mendelssohn in Berlin on 11 March 1829, and Leipzig in 1841, and were sent to William Sterndale Bennett for his guidance when preparing for the first performance in London on 6 April 1854 (see F. G. Edwards, 'Bach's music in England', in The Musical Times vol. 37 (1896), p. 799). The few pencil markings were probably made during rehearsal in Germany and are not, as erroneously mentioned by Edwards, in Mendelssohn's hand. See also p. 147.