In the original Cantus index for this manuscript, differentiae were assigned a two-digit code that identified the last note of each differentiae and used a number to distinguish between differentiae in the same mode that shared the same last note.
Carter, Shannon. Inventory of Istanbul, Topkapi Sarayi Müzesi, Deissmann 42. Edited by Debra Lacoste and Elizabeth Sander. 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-).
The Istanbul Antiphonal. Musicalia Danubiana Series. Budapest: Akadémiai Kiadó, 2002.
Standardized manuscript tonary completed by Rebecca Shaw (Dalhousie University) on March 11, 2018. Edited by Jennifer Bain, Sister Ilaria Culshaw, and Lucia Denk (Dalhousie University) on July 24, 2019 and Rebecca Shaw on August 7, 2019.