Sources 

 

 

 

Deus in adjutorium : Schola Gregoriana, Fr. D. Smolarek, Ołtarzew Seminarium Pallotyni, Polska

Ut queant laxis : Chanel Graduale Project, Marek Klein, Slovakia

Ingresso Zacharia : Hartkeriana , Amsterdam, Netherlands

Magnificat : youtube/@jipmas

Antiphons and Psalms :  private recordings

3. Psalm (Canticum) tone 3a according to the "Les Heures Grégoriennes", Saint-Martin Community, France