History - Factus est adiutor
Feb 27, 2021 (Olivier Berten)
Add Hartker source
remarks
https://www.e-codices.unifr.ch/en/csg/0390/151
sources
[{"chant_id":"14738","source":"17","page":"139","sequence":"2","extent":"1"},{"chant_id":"14738","source":"59","page":"151","sequence":"6","extent":"1"}]