Aeterni regis*

Source: 
Worcester, Cathedral - Music Library, F.160 (olim 1247) (with hymnal)
Folio: 
234r
Sequence: 
15
Feast: 
Mariae Magdalenae
Office/Mass: 
L
Genre: 
A
Position: 
P
Cantus ID: 
200174
Mode: 
*
Addendum: 
P: 338