O magni meriti Maria o

Source: 
Worcester, Cathedral - Music Library, F.160 (olim 1247) (with hymnal)
Folio: 
232v
Sequence: 
18
Feast: 
Mariae Magdalenae
Office/Mass: 
M
Genre: 
R
Position: 
1.2
Cantus ID: 
601590
Mode: 
2
Addendum: 
P: 335