History - Primum quaerite
Nov 19, 2018 (SirPL)
Added reference to Liber Usualis
sources
[{"chant_id":"868","source":"2","page":"359","sequence":"2","extent":"1"},{"chant_id":"868","source":"3","page":"1039","sequence":"2","extent":"2"}]
Added reference to Liber Usualis
sources
[{"chant_id":"868","source":"2","page":"359","sequence":"2","extent":"1"},{"chant_id":"868","source":"3","page":"1039","sequence":"2","extent":"2"}]