score parts written in Leipzig (1726) (parts by Bach, Heinrich Bach, Meißner). Parts consist of Continuo (transposed); Soprano; Alto; Tenor I, II; Bass D-B N. Mus. ms. 10624 – a 57-page score Wilhelm Rust derived from the previous in the 19th century. He titled this reconstructed score "Dr. Rust / Passion / nach dem Evangelium / St. Marcus / componirt / von ?" and on page 2 "Passion nach dem Ev. Marcus / Aus J. S. Bach's größtentheils eigenhändig geschriebenen Stimmen / in Partitur gesetzt / von / Dr. Wilhelm Rust, Cantor zu St. Thomas / in Leipzig". This is the main source for Bach's Weimar version of Jesus Christus ist um unser Missetat willen verwundet. These sources remain possibly incomplete. Whether any of the sources mentioned above represent the original form of the work is also doubtful. Even instrumentation is questionable. The oboe solo part required for some of the movements is included in the violin I part, which means that it is possible that the violin I player(s) were intended to be used for these parts as well, or that possibly the oboe parts are missing (meaning that there were one or even two oboe players intended for the work). Also noticeably missing is a figured organ part, a bassoon part, a violoncello part, and a part for viol. The lack of an organ part has been variously explained by the fact that from the middle of 1712 until, probably, 1714, the Organ of the Weimar Schloßkirche (the Himmelsburg) was being renovated. Bach's third version (BNB I/K/2) can be reconstructed from the above, from Handel's Brockes Passion, and: D-B N. Mus. ms. 468 the harpsichord part for this pasticcio (Part by Johann Christoph Friedrich Bach with figures by J. S. Bach dating from 1743 to 1748) Privatbesitz C. Thiele, BWV deest (NBA Serie II:5) a fragment of the Bassoon part in Bach's handwriting (dating from 1743 to 1748). The Bassoon part is for one of the Handel arias in the pasticcio. Bach's fifth Passion? Bach's Nekrolog (obituary) was published in 1754 by Lorenz Christoph Mizler. Its authors, Bach's son Carl Philipp Emanuel Bach and his former pupil Johann Friedrich Agricola, indicated in the list of unpublished works, pp. 168–169 of the Nekrolog, that Bach would have written five Passions. Four of these are easily identified, they were listed as Nos. 244–247 in the Bach-Werke-Verzeichnis. As for the fifth