more strained than they had been previously, to the point that Wilhelm Ernst officially forbade his employees to have any relations or communications with the Ernst August's residence Rotes Schloss. Wilhelm Ernst was also looking for a successor to the post of Kapellmeister at his court because the previous holder of the post, Johann Samuel Drese, had died on 1 December 1716. Eventually Drese's son (a less talented candidate) was selected for the post. Possibly because of this perceived snub, and also because of the perceived better circumstances awaiting him in Köthen both financially and in prestige, Bach began more vehemently to request his release from Wilhelm Ernst. He had become so insistent that between 6 November and 2 December, he was imprisoned before final permission was granted. The court secretary's report of the incident relates as follows: At any rate, during this flurry of activity, Bach had also received a commission from Frederick II, Duke of Saxe-Gotha-Altenburg to compose and perform a Passion setting for his court for Good Friday, as his then Kapellmeister, Christian Friedrich Witt, was on his deathbed. Bach accepted the commission, and performed the work on 26 March 1717 at the Schloss Friedenstein Chapel. The work performed there was the so-called Weimarer Passion. The work The text and music of this Weimarer Passion are lost. In recent research, nine movements from this work have been identified because Bach reused them in different functions. These are as follows: Chorale fantasia on "", D major, for SATB choir, flauto traverso I/II, oboe I/II, violino I/II, viola, continuo (incl. liuto and organo) Aria with Chorale "", F-sharp minor, for bass solo, choral soprano, flauto traverso I/II, continuo Aria , A major, for solo tenor, violino I/II, viola, continuo Aria , C minor, for solo tenor, oboe I/II, bassono, continuo Chorale fantasia on "" G minor (Coro: S A T B, Flauto traverso I/II, Oboe I/II, Violino I/II, Viola, Continuo Chorale "", BWV 283 (BC F 31.1), A minor, SATB, flauto traverso I/II, oboe I/II, violino I/II, viola, continuo Aria , D minor, for tenor, flauto traverso, continuo Recitativo , B-flat major, for tenor, violino I/II, viola, continuo Chorale "", B major, SATB, flauto traverso I/II, oboe I/II, violino I/II, viola, continuo On 7 February 1723, the fifth movement mentioned above was used again after the sermon as the fourth and final movement of the second trial piece Bach