Guy of Saint-Denis, Tractatus de tonis

The Tractatus de tonis of Guy of Saint-Denis (written ca. 1300-10) differs from other treatises on plainchant in the depth of its analysis of the various tones into which chant was traditionally classified. Guy's treatise presents itself as a synthetic overview of both the theory and practice of plainchant in a way that combines the practical reflection of Guido of Arezzo with ideas of more Aristoteleian inspired theorists such as Johannes de Grocheio and Peter of Auvergne.



Constant J. Mews is Director of the Centre for Religious Studies, Monash University in Victoria, Australia. John N. Crossley is a Professor Emeritus at Monash University. Catherine Jeffreys is an Adjunct Research Associate at Monash University. Carol J. Williams is a Senior Lecturer at Monash University, specializing in medieval music.



Acknowledgments Abbreviations Introduction Outline of the Tractatus de tonis Tractatus de tonis: Text and Translation Appendices 1. Deleted material 2. Explanatory material 3. Chant sources and concordances Works Cited Manuscript sources Primary sources Secondary sources Lexicon Glossary Onomastic Index