Another Kirnberger chorale from Princess Anna Amalia's hoard of manuscripts. Amazingly, it seems that this rather fetching piece only survives in two manuscripts, one of them the one shown in the video and used by Auke Jongbloed for publishing it in a new score: http://partitura.org/index.php/johann-philipp-kirnberger-nun-danket-alle-gott/