History - Gregorius septiformi gratia
Dec 31, 2020 (Olivier Berten)
Add source
remarks
Require in Antiphonale Solesmense 1935, pp 946-947
sources
[{"chant_id":"9247","source":"38","page":"946","sequence":"2","extent":"2"}]
Add source
remarks
Require in Antiphonale Solesmense 1935, pp 946-947
sources
[{"chant_id":"9247","source":"38","page":"946","sequence":"2","extent":"2"}]