Haec dies (Psalm 118:24,1) – Perotin Posted on August 8, 2022 Posted in Pérotin Notre-Dame, Paris in the background of an illuminated manuscript by Jean Fouquet Psalm 118:24,1 [Latin Vulgate: Psalm 117:24,1] 24 This is the day that the Lord has made; let us rejoice and be glad in it. 1 O give thanks unto the Lord; for he is good: because his mercy endureth for ever. Haec est dies quam fecit Dominus; exsultemus, et laetemur in ea. Confitemini Domino, quoniam bonus, quoniam in saeculum misericordia ejus. Haec est, composed by Pérotin (fl. c. 1200) Pérotin: Haec diesWatch this video on YouTube ^Performed by Cantica of the Czech Republic