Dum sacrum mysterium cerneret

Folio: 
276va
Sequence: 
2
Feast: 
Office/Mass: 
E
Genre: 
A
Position: 
2
Cantus ID: 
002469
Mode: 
*
Manuscript Reading Full Text (standardized spelling): 
Dum sacrum mysterium cerneret Joannes archangelus Michael tuba cecinit ignosce domine deus noster qui aperis librum et solvis signacula ejus alleluia