In the original Cantus index for this manuscript, differentiae were arbitrarily assigned numbers within each mode.
Downey, Charles, Keith Glaeske, and Denise Gallo. Inventory of Monza, Basilica di S. Giovanni Battista - Biblioteca Capitolare e Tesoro, 15/79. In: Cantus: A Database for Latin Ecclesiastical Chant: Inventories of Chant Sources. Directed by Debra Lacoste (2011-), Terence Bailey (1997-2010), and Ruth Steiner (1987-1996). Web developer, Jan Kolácek (2011-).
Differentiae indexed in consultation with a microfilm facsimile of the manuscript by the Biblioteca Capitolare Monza (July 13, 1988).
Standardized manuscript tonary completed by Rebecca Shaw (Dalhousie University) on September 6, 2018. Edited by Jennifer Bain, Sister Ilaria Culshaw, and Lucia Denk (Dalhousie University) on July 24, 2019 and Rebecca Shaw on August 7, 2019.