Dum sacrum mysterium cerneret Joannes archangelus

Source: 
CZ-R (Rajhrad) R 17
Folio: 
206v
Sequence: 
6
Office: 
V
Genre: 
A
Position: 
R
Cantus ID: 
002469
Feast: 
Michaelis
Mode: 
8
Full text: 
Dum sacrum mysterium cerneret Joannes archangelus Michael tuba cecinit dignus es domine deus noster accipere librum et aperire signacula ejus alleluia

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