Plenary mass.

A setting of both the Ordinary and the Proper of the Roman Catholic Mass. Examples are rare: they include Du Fay’s early Missa Sancti Jacopi and the mass of Reginaldus Libert, both probably from the 1420s, as well as the mass for St Anthony Abbot ascribed to a certain Piret (I-TRmp 89) and perhaps Du Fay’s mass for St Anthony of Padua, both evidently from the 1440s. But the prinicple became common only in the requiem (see Requiem Mass, §2).