History - Ioannes autem
Apr 15, 2019 (SirPL)
Added references to Antiphonale Romanum vol. 2
sources
[{"chant_id":"4413","source":"6","page":"32","sequence":"1","extent":"1"},{"chant_id":"4413","source":"17","page":"26","sequence":"02","extent":"1"},{"chant_id":"4413","source":"53","page":"23","sequence":"1","extent":"2"}]