History - Beata Dei Genitrix Virgo
May 27, 2022 (Jacques Perriere)
Liber Antiphonarius page 577.23
sources
[{"chant_id":"2810","source":"3","page":"260","sequence":"12","extent":"1"},{"chant_id":"2810","source":"48","page":"52","sequence":"1","extent":"2"},{"chant_id":"2810","source":"48","page":"577.243","sequence":"1","extent":"1"}]