The prelude on 'Jesu du mein liebstes Leben' is transcribed from "The Wöchentliche Nachrichten und Anmerkungen die Musik betreffend”. This journal appeared weekly in Leipzig from 1 July 1766 to 24 December 1770. Most of the eight page issues contained one or two main articles, usually published in installments, followed by short reviews and a piece of music. Johann Adam Hiller (1728 – 1804) was the editor, initiator and almost sole contributor to the WNA.
I have already posted four pieces from the WNA. These pieces go without a named composer in the journal. I suspect they are from Hiller himself, but this is only a supposition, there is no proof of it. The piece posted today is a beautiful bicinium.