Istorum*

Source: 
Worcester, Cathedral - Music Library, F.160 (olim 1247) (facsimile)
Folio: 
424
Sequence: 
18
Feast: 
Comm. plurimorum Martyrum
Office/Mass: 
V
Genre: 
A
Position: 
M
Cantus ID: 
003451
Mode: 
8
Differentia: 
*
Addendum: 
277r
Manuscript Reading Full Text (standardized spelling): 
Istorum*
Manuscript Reading Full Text (MS spelling): 
Istorum