Tandem electus domini

Source: 
Rouen, Bibliothèque municipale, 248 (olim A. 339)
Folio: 
012r
Sequence: 
2
Feast: 
Gregorii
Office/Mass: 
M
Genre: 
A
Position: 
2.6
Cantus ID: 
005103
Mode: 
4
Differentia: 
E1
Differentia database: 
1--h-g-h-jh-gf-e--4 19a