Qui sedes nobiscum ecce

Source: 
Firenze (Florence), Arcivescovado - Biblioteca, s.c.
Folio: 
151r
Sequence: 
1
Feast: 
Apollinaris
Office/Mass: 
M
Genre: 
A
Position: 
1.2
Cantus ID: 
204136
Mode: 
1
Differentia: 
2
Differentia database: 
1--h-h-g-f-gh-g--4 66d