Quem vidistis pastores dicite

Folio: 
040v
Sequence: 
6
Office/Mass: 
L
Genre: 
A
Position: 
1B
Cantus ID: 
004455
Mode: 
2
Differentia-Old: 
D2
Indexing notes: 
marked for "Laudes" - are these Benedictus antiphons?;