History - De profundis
Nov 19, 2018 (SirPL)
Added reference to Liber Usualis
sources
[{"chant_id":"986","source":"2","page":"388","sequence":"2","extent":"2"},{"chant_id":"986","source":"3","page":"1076","sequence":"2","extent":"2"}]
Added reference to Liber Usualis
sources
[{"chant_id":"986","source":"2","page":"388","sequence":"2","extent":"2"},{"chant_id":"986","source":"3","page":"1076","sequence":"2","extent":"2"}]