Proprio filio suo non

Source: 
Worcester, Cathedral - Music Library, F.160 (olim 1247) (with hymnal)
Folio: 
062r
Sequence: 
3
Feast: 
Fer. 6 in Parasceve
Office/Mass: 
L
Genre: 
A
Position: 
1
Cantus ID: 
004395
Mode: 
5
Differentia: 
1a
Differentia database: 
1--k-k-l-j-kJ-h--4 129o
Addendum: 
P: 124