History - In voluntate
Nov 19, 2018 (SirPL)
Added reference to Liber Usualis
sources
[{"chant_id":"1047","source":"2","page":"380","sequence":"1","extent":"1"},{"chant_id":"1047","source":"3","page":"1066","sequence":"2","extent":"2"}]
Added reference to Liber Usualis
sources
[{"chant_id":"1047","source":"2","page":"380","sequence":"1","extent":"1"},{"chant_id":"1047","source":"3","page":"1066","sequence":"2","extent":"2"}]