In 2016 the Centre d’Études Supérieures de la Renaissance issued Missa Sancta Trinitas (4 vv). (B-Tc A58), a critical edition of the anonymous Missa Sancta Trinitas—which survives only in the manuscript B-Tc A58, housed at the Archives et Bibliothèque de la Cathédrale de Tournai—together with a critical edition of the four-part motet Sancta Trinitas.
The edition, part of CESR’s Le corpus des messes anonymes series, was prepared by Anne-Emmanuelle Ceulemans.
Above (click to enlarge) and below, the Sanctus from the Mass.