Tu mandasti domine mandata tua

Source: 
Sankt Gallen, Stiftsbibliothek, 390
Folio: 
091
Sequence: 
9
Feast: 
Dom. per annum
Office/Mass: 
P
Genre: 
A
Cantus ID: 
005214
Mode: 
7
Differentia: 
yb
Differentia database: 
1--l-l-m-l-k-jh--4 143b
Manuscript Reading Full Text (standardized spelling): 
Tu mandasti domine mandata tua custodire nimis
Manuscript Reading Full Text (MS spelling): 
Tu mandasti domine mandata tua custodire nimis
Indexing notes: 
differentia traced over by a later hand?