Buxheim Organ Book

Most of the composers are anonymous, but some are also known composers of the time (e.g. John Dunstable, Guillaume Du Fay, Gilles Binchois, Walter Frye, Conrad Paumann).

[1] In addition to arrangements of secular chansons, dances and songs, it contains about fifty pieces of liturgical character and about thirty preludes, in which rhapsodic-figurative and purely chordal parts alternate.

Presumably it came from a writer from the southern German area and was in the possession of the Buxheim Charterhouse near Memmingen from 16th century and until 1883, when it was offered for sale and has been owned by the Bavarian State Library in Munich since then.

The manuscript is often attributed to Conrad Paumann,[2][3] because his "Fundamentum organisandi" is included in its entirety.

Paumann's "Fundamentum organisandi" is also included in the Lochamer-Liederbuch, compiled around the same time.

Manuscript
A page from the Buxheim Organ Book as preserved in Bavarian State Library, Munich