Noli claudere aures tuas ad

Source: 
Cambridge, University Library, Mm.ii.9
Folio: 
171
Sequence: 
1
Feast: 
Dom. 3 Quadragesimae
Office/Mass: 
C
Genre: 
AV
Position: 
02
Cantus ID: 
003732zb
Mode: 
4
Differentia: 
3
Differentia database: 
1--h-g-h-jh-gfe-ef--4 21c