O magnum mysterium*

Source: 
Praha (Prague), Národní knihovna České republiky (National Library), VI.E.4c
Folio: 
090v
Sequence: 
6
Feast: 
Dom. p. Nat. Dom.
Office/Mass: 
M
Genre: 
R
Position: 
1.2
Cantus ID: 
007274
Manuscript Reading Full Text (standardized spelling): 
O magnum mysterium*