Helena Constantini mater

Source: 
Cambridge, University Library, Mm.ii.9
Folio: 
426
Sequence: 
4
Feast: 
Inventio Crucis
Office/Mass: 
L
Genre: 
A
Position: 
1
Cantus ID: 
003022
Mode: 
7
Differentia: 
3
Differentia database: 
1--l-l-m-l-k-j--4 142a
Extra: 
c