Erat quidam regulus cujus

Source: 
Cambridge, University Library, Mm.ii.9
Folio: 
340
Sequence: 
5
Feast: 
Dom. 22 p. Pent.
Office/Mass: 
L
Genre: 
A
Position: 
B
Cantus ID: 
002661
Mode: 
1
Differentia: 
8
Differentia database: 
1--h-h-g-f-gff-d--4 74e