Unde veniet auxilium mihi

Source: 
Roma, Biblioteca Vallicelliana, C.5
Folio: 
064r
Sequence: 
21
Feast: 
Fer. 4 per annum
Office/Mass: 
T
Genre: 
A
Cantus ID: 
005269
Mode: 
1
Differentia: 
6
Differentia database: 
1--h-h-g-f-g-h--4 64b