Urbs fortitudinis nostrae

Source: 
Dubrovnik, Franjevački Samostan (Franciscan Monastery), Cod. C Nr. 4
Folio: 
056
Sequence: 
1
Feast: 
Dom. 2 Adventus
Office/Mass: 
L
Genre: 
A
Position: 
2
Cantus ID: 
005281
Mode: 
7
Differentia: 
C2
Differentia database: 
1--l-l-m-l-k-lk--4 148b
Indexing notes: 
There is an erasure near the end of the differentia;