History - Sanctissimus namque Gregorius
Jan 25, 2021 (xmarteo)
Changed usage to Tropa and removed source which corresponded to the un-troped piece
incipit
Sanctissimus namque Gregorius
office-part
vatp
sources
[{"chant_id":"4654","source":"1","page":"1","sequence":"0","extent":"1"}]
tags
["Dominica I Adventus"]