Nisi tu domine conserves nos

Source: 
Firenze (Florence), Biblioteca Medicea-Laurenziana, Conv. sopp. 560
Folio: 
052r
Sequence: 
15
Feast: 
Fer. 4 per annum
Office/Mass: 
N
Genre: 
A
Cantus ID: 
003885
Mode: 
1
Differentia: 
6
Differentia database: 
1--h-h-g-f-g-ghg--4 66l