History - Viam mandatorum
Nov 13, 2018 (SirPL)
Added reference to Liber Usualis
sources
[{"chant_id":"1253","source":"2","page":"502","sequence":"2","extent":"2"},{"chant_id":"1253","source":"3","page":"1474","sequence":"1","extent":"1"}]
Added reference to Liber Usualis
sources
[{"chant_id":"1253","source":"2","page":"502","sequence":"2","extent":"2"},{"chant_id":"1253","source":"3","page":"1474","sequence":"1","extent":"1"}]