Credo in vinum deum*

Source: 
Oxford, Bodleian Library, MS. Lat. liturg. e. 13
Folio: 
030v
Sequence: 
11
Feast: 
Fer. 3 de Passione
Office/Mass: 
MI
Genre: 
Cr
Cantus ID: 
509503
Mode: 
?
Manuscript Reading Full Text (standardized spelling): 
Credo in vinum deum*
Manuscript Reading Full Text (MS spelling): 
Credo in vinum deum*
Indexing notes: 
Rubric inscription above reads something like 'Somini taliter', and Cantus states 'talitez' belongs to 'Gertrudis' feast. Check this