Mylau Tabulature Book
From pipe-organ.wiki
D-MY Handschrift "Mylauer Tabulaturbuch", also known as the Mylau Tabulature Book, is a tabulature book held in the Evangelisch-lutherische Kirchengemeinde, Kirchenarchiv, Mylau.
It was likely written by Johann Christoph Traeger, a cantor in Mylau, around 1730.
The title page reads TABULATUR / BUCH / IMSO [=1750?].
References
Beckmann, Klaus (editor). A. Kneller / G. D. Leyding: Sämtliche Orgelwerke. Meister der Norddeutschen Orgelschule 31. Mainz: Schott, 2013. 70.