Alta dispensatione actum hoc

Source: 
Vorau, Stiftsbibliothek, 287 (olim XXIX)
Folio: 
219v
Sequence: 
11
Feast: 
Thomae Apost.
Office/Mass: 
V
Genre: 
A
Position: 
2
Cantus ID: 
200237
Mode: 
2
Differentia: 
1b
Differentia database: 
1--f-f-f-f-cd-d--4 150e