History - Quod chorus

Feb 07, 2021 (xmarteo)

Removed Antiphonale Romanum II as source, because this has rhythmic signs while AR2 has not

sources
[{"chant_id":"4307","source":"6","page":"503","sequence":"127","extent":"127"},{"chant_id":"4307","source":"15","page":"348","sequence":"127","extent":"1"}]