Justi autem in perpetuum

Source: 
Paris, Bibliothèque nationale de France - Département des Manuscrits, NAL 1412
Folio: 
107r
Sequence: 
4
Feast: 
Exaltatio Crucis
Office/Mass: 
M
Genre: 
A
Position: 
2.2
Cantus ID: 
003534
Mode: 
4
Differentia: 
E1
Differentia database: 
1--h-g-h-kh-gf-e--4 37a