Critical Edition of Respond c7200

R.CAO-F CAO-S: Nativitatem hodiernam perpetuae virginis genitricis Dei Mariae solemniter celebremus

CAO-F: qua celsitudo

CAO-S: quo celsitudo

throni processit

CAO-S: alleluia

CAO-F: [NOTE:silent reading]

V.CAO-S: Beata et venerabilis virgo Maria cuius viscera meruerunt portare dominum

V.CAO-F: Regali ex progenie Maria exorta refulget

rep.CAO-F CAO-S:Qua