Mecum enim est maxima merces

Source: 
Worcester, Cathedral - Music Library, F.160 (olim 1247) (with hymnal)
Folio: 
258r
Sequence: 
9
Feast: 
Dionysii
Office/Mass: 
M
Genre: 
A
Position: 
2.4
Cantus ID: 
003728
Mode: 
7
Differentia: 
3
Differentia database: 
1--l-l-m-l-kj-l--4 146m
Addendum: 
P: 386