[Compliation of five fascicles of treatises on music]
Contributors: Guido, d'Arezzo; Guido, d'Arezzo; Johannes, Afflighemensis, active approximately 1100; Hermannus, Contractus, 1013-1054; Hermannus, Contractus, 1013-1054; Lambertus; Petrus dictus Palma ociosa; Stadt- und Regionalbibliothek Erfurt
Language: lat
Number of pages: 98
Subjects: Music theory
Other titles: Dialogus de musica
Notes: Includes treatises by Johannes of Afflighem, Pseudo-Odo, Hermannus Contractus, Guido d'Arezzo, Lambertus, and anon.

Copied in France and Germany in the late 13th and 14th centuries.