Volpiano is a font that encodes a chant melody as a text string. It was developed by Fabian
Weber at the University of Regensburg under the direction of David Hiley. The lower case letters
a through z correspond to pitches.
Genre identifies chants by type.
The feast is the name of the occasion on which the chant is sung.
The office is the the liturgical service in which the chant is sung.