The Differentiae Database provides basic analytic tools for the cross-manuscript study of differentiae and a standardized means for identifying differentiae in manuscript indices. To date, the database includes differentiae from over 170 manuscripts, most of which are fully indexed in the Cantus Database

There are two main intended uses of the Differentiae Database:

  • Researching differentiae, tonaries, antiphoners, antiphons, psalms, etc.
  • Indexing any manuscript that contains differentiae

See the About page and its subsidiaries for more information on the project and how to use the database. If you would like to contribute to the database, please see the Contribute page and Contact the project director (Rebecca Shaw).


Rebecca Shaw, Project Director

The Differentiae Database is designed and maintained by Rebecca Shaw, MLIS, MA, as part of the Digital Analysis of Chant Transmission (DACT) project. Shaw began the database as part of her master's thesis at Dalhousie University, Halifax, Nova Scotia (2019). She is currently the Music Archivist at the University of Toronto Music Library.


If you are interested in earlier stages of this project, see the following:

Shaw, Rebecca. "Differentiae in the Cantus Manuscript Database: A Cross-Manuscript Analysis." Master's thesis, Dalhousie University, Halifax, Nova Scotia, Canada. June, 2019.

Shaw, Rebecca. "Differentiae in the Cantus Manuscript Database: Standardization and Musicological Application." In Proceedings of the 5th International Conference on Digital Libraries for Musicology (DLfM '18). ACM, New York, NY, USA (2018), 38-46.

Shaw, Rebecca. "Standardizing a Crowdsourced Field." Presented at Machine-Reading and Crowdsourcing Medieval Music Manuscripts, Eastman School of Music, Rochester, New York (October 2017). 


Database created with the support of:

SSHRC logo

Killam Laureates logo

Compute Canada logo