Dignum namque est ut ei

Source: 
Kraków, Klastor OO. Karmelitów na Piasku (Carmelite Convent), Ms.3 (rkp. Perg. 15)
Folio: 
147r
Sequence: 
1
Feast: 
Nativitas Mariae
Office/Mass: 
M
Genre: 
A
Position: 
2.2
Cantus ID: 
002220
Mode: 
5
Differentia: 
A01
Differentia database: 
1--k-k-l-j-k-h--4 129a
Addendum: 
248