Sanctum et verum lumen*
Marginalia:
B
Folio:
158v
Sequence:
8
Feast:
Office/Mass:
X
Genre:
A
Cantus ID:
004768
Mode:
4
Manuscript Reading Full Text (standardized spelling):
Sanctum et verum lumen*
Manuscript Reading Full Text (MS spelling):
Sanctum et verum lumen
Indexing notes:
This is probably the Magnificat antiphon for the Second Vespers of the Comm. Apostolorum.
Image link: