In the original Cantus index for this manuscript, differentiae were identified by their last note and an arbitrarily-assigned number to distinguish between differentiae that shared the same last note, within the same mode.
Boyce, James, O. Carm. Inventory of Salamanca, Catedral - Archivo Musical, 7. Edited by Andrew Mitchell. 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 11, 2018. Edited by Jennifer Bain, Sister Ilaria Culshaw, Lucia Denk, Andrea Klassen, and Brayden Olson (Dalhousie University) on August 29, 2019.