Tractatus de tonis
Subtitle: Treatise on the tones
By: Guy of Saint-Denis ; edited and translated by Constant J. Mews, Carol J. Williams, John N. Crossley, and Catherine Jeffreys
Contributors: Mews, C. J., editor; Williams, Carol J. (Carol Janice), editor; Crossley, John N., editor; Jeffreys, Catherine, 1969- editor
Series: TEAMS varia; Varia (Kalamazoo, Mich.)
Publisher: Medieval Institute Publications, Western Michigan University
Published: 2017
Place of publication: Kalamazoo, Michigan
Language: lat
Number of pages: 286
ISBN-13: 9781580442541
Subjects: Music theory; Early works to 1800; Church music; Catholic Church; Tonarius; History; Tractatus de tonis (Guido, de Sancto Dionysio)
Other titles: Treatise on the tones
Notes: Includes bibliographical references and indexes.

Text in Latin and English and with English translations.