Propter insuperabilem

Source: 
Cambridge, University Library, Mm.ii.9
Folio: 
429
Sequence: 
2
Feast: 
Joannis Port. Lat.
Office/Mass: 
L
Genre: 
A
Position: 
B
Cantus ID: 
004397
Mode: 
5
Differentia: 
1
Differentia database: 
1--k-k-l-j-k-h--4 129a
Extra: 
2 b