Offering a critical text for the fourteenth-century treatise, this GLMT edition includes a facing-page English translation. Annotations to the translation explain the legal and scholastic allusions in the treatise. Also presented are versions of the musical figures, and an introduction that explains its musical and intellectual sources.

The GLMT edition of the anonymous fourteenth-century treatise presents a complete critical text for the treatise together with a facing-page English translation. Annotations to the translation explain the numerous legal and scholastic allusions in the treatise. Also presented are corrected versions of the approximately one hundred musical figures. Preceding the critical text and translation, an extended introduction explains the musical and intellectual sources of the work.