Ecce merces sanctorum copiosa

Source: 
Arras, Bibliothèque municipale, 893 (olim 465)
Folio: 
502r
Sequence: 
6
Feast: 
Comm. plurimorum Martyrum
Office/Mass: 
M
Genre: 
A
Position: 
2.3
Cantus ID: 
002524
Mode: 
4
Differentia: 
1
Differentia database: 
1--h-g-h-j-g-e--4 27a