In the original Cantus index for this manuscript, the differentiae were identified based on the second tonary included in the manuscript I-VCd LXX (ff. 213v-222r).
Brusa, Gionata. I nventory of Vercelli, Biblioteca Capitolare, LXXIX. 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-).
Standardized manuscript tonary completed by Rebecca Shaw (Dalhousie University) on March 17, 2018. Edited by Jennifer Bain, Sister Ilaria Culshaw, Lucia Denk, and Brayden Olson (Dalhousie University) on September 13, 2019.