Sanctum est verum lumen et

Source: 
Roma, Biblioteca Vallicelliana, C.5
Folio: 
259v
Sequence: 
2
Feast: 
Omnium Sanctorum
Office/Mass: 
M
Genre: 
A
Position: 
3.
Cantus ID: 
004768
Mode: 
4
Differentia: 
3
Differentia database: 
1--h-g-h-jh-gf-e--4 19a