Erat enim in sermone verax

Source: 
Aosta, Seminario Maggiore - Biblioteca, 6
Folio: 
141r
Sequence: 
4
Feast: 
Fabiani, Sebastiani
Office/Mass: 
M
Genre: 
A
Position: 
1.2
Cantus ID: 
002653
Mode: 
8T
Differentia: 
C1
Differentia database: 
1--f-f-d-f-g-f--4 T99d