Istorum est enim regnum

Source: 
Cambridge, University Library, Mm.ii.9
Folio: 
648
Sequence: 
12
Feast: 
Comm. plurimorum Martyrum
Office/Mass: 
L
Genre: 
A
Position: 
1B
Cantus ID: 
003451
Mode: 
8
Differentia: 
1
Differentia database: 
1--k-k-j-k-h-g--4 118a
Extra: 
4 f