Johannes Beausseron Missa de feriaVatS 55, ff. 72v-79r 4 voices: discantus, altus, tenor, bassus KYRIEKyrie [I], Christe, Kyrie [II]EditionSANCTUSSanctus, Pleni sunt, Osanna [I], Benedictus, Osanna [II]EditionAGNUS DEIAgnus [I], Agnus [II]Agnus [II] - discantus, altus, tenor, bassus [I], bassus [II]Edition