History - Qui meditabitur
Feb 28, 2022 (fkchaud)
Added Graduale Romanum 1974 as a source
sources
[{"chant_id":"582","source":"2","page":"90","sequence":"2","extent":"2"},{"chant_id":"582","source":"3","page":"529","sequence":"1","extent":"1"},{"chant_id":"582","source":"4","page":"67","sequence":"1","extent":"1"}]