O quam pulchra es casta

Source: 
Oxford, Bodleian Library, MS. Canon. Liturg. 202 (olim 19314)
Folio: 
128r
Sequence: 
9
Feast: 
Comm. plurimorum Virginum
Office/Mass: 
M
Genre: 
A
Position: 
1.3
Cantus ID: 
004069
Mode: 
?
Differentia: 
*