Try our new app that works in your browser (https://abbot.uwaterloo.ca/). Search while online, then save your results and access them offline! Look for the Cantus Web App in the "Resources" menu. Find a brief description here: https://abbot.uwaterloo.ca/#/offline. (Note: Safari users may have difficulty, as it is not optimized for offline use - try Chrome or Firefox!)
You can now easily compare melodies of each chant after one click! Try it here: http://cantus.uwaterloo.ca/chant/230882 (find the "List of melodies" section and click below)
Cantus Database and Cantus Index have been presented on 19/1/2015 during the Prague workshop Editing Medieval Texts: Paleography, Codicology, Philology by Jan.