Tunc invocabis et dominus

Source: 
Dubrovnik, Franjevački Samostan (Franciscan Monastery), Cod. D Nr. 5
Folio: 
073v
Sequence: 
2
Feast: 
Dom. 1 Quadragesimae
Office/Mass: 
V
Genre: 
A
Position: 
M
Cantus ID: 
005243
Mode: 
7
Differentia: 
A1
Differentia database: 
1--l-l-m-l-k-jh--4 143b
Indexing notes: 
marked for V2 Saturday, but taken as first Vespers for Sunday (as happens throughout this ms);