Tum rex cum proceres cum

Source: 
Worcester, Cathedral - Music Library, F.160 (olim 1247) (with hymnal)
Folio: 
208r
Sequence: 
7
Feast: 
Oswaldi, Epi.
Office/Mass: 
M
Genre: 
V
Position: 
01
Cantus ID: 
601715a
Mode: 
8S
Addendum: 
P: 284