The Mass was likely written for the Saturday "Lady Mass" at Reims Cathedral , where Machaut served as a high-ranking cleric.
: It expanded sacred music to four independent voices, adding a "contratenor" for deeper harmonic richness. Machaut Messe de Nostre Dame
: The work includes the five sections of the Ordinary —Kyrie, Gloria, Credo, Sanctus, and Agnus Dei—plus the dismissal, Ite Missa Est . The Mass was likely written for the Saturday