Written in 1919 by Marcel Dupre (1886-1971), this collection of organ works was originally titled Fifteen Pieces for Organ Founded on Antiphons (15 Versets pour les Vepres du Commun des Fetes de la Sainte Vierge). It is divided into three sections: Antiphons (1-5), Ave Maris Stella (1-4), and Magnificat (1-6).