Aperi nobis velocius ut per

Source: 
Worcester, Cathedral - Music Library, F.160 (olim 1247) (with hymnal)
Folio: 
236v
Sequence: 
1
Feast: 
Inventio Stephani
Office/Mass: 
M
Genre: 
V
Position: 
01
Cantus ID: 
007815a
Mode: 
3
Addendum: 
P: 343