Si quis perseveraverit usque

Source: 
Firenze (Florence), Arcivescovado - Biblioteca, s.c.
Folio: 
153r
Sequence: 
4
Feast: 
Apollinaris
Office/Mass: 
L
Genre: 
A
Position: 
5
Cantus ID: 
204633
Mode: 
1
Differentia: 
1
Differentia database: 
1--h-h-g-f-gh-gf--4 69b