[Musical treatises
By: mostly by Guido d'Arezzo]
Contributors: Guido, d'Arezzo; Carapetyan Collection
Language: lat
Number of pages: 25
Subjects: Music theory
Notes: Copied in Germany in the 12th century.

RISM B III/3 ; p. 55-56
Table of contents: title: Includes Micrologus (f. 2-13v), Regulae rhythmicae (f.14-16), Prologus in Antiphonarium (f. 16-17v), Epistola ad Michaelem (17v-21v) by Guido d'Arezzo.