Lux orta est justo alleluia

Source: 
Arras, Bibliothèque municipale, 893 (olim 465)
Folio: 
491r
Sequence: 
6
Feast: 
Comm. Apostolorum
Office/Mass: 
M
Genre: 
A
Position: 
2.3
Cantus ID: 
003651
Mode: 
6
Differentia: 
1
Differentia database: 
1--h-h-f-gh-g-f--4 7a