O sanctam virginem cujus

Source: 
Zutphen, Stadsarchief en Stedelijke Bibliotheek, 6
Folio: 
222r
Sequence: 
2
Feast: 
Gudulae
Office/Mass: 
L
Genre: 
A
Position: 
2B
Cantus ID: 
203580
Mode: 
4
Differentia: 
E1
Differentia database: 
1--h-g-h-k-g-e--4 41a