Léonin / Pérotin: Magnus Liber / Feast of the Assumption of the Blessed Virgin Mary:Benedicta (à 3) - Virgo Dei genitrix (à 3) (Gradual)-Orlando Consort/Choristers Of Westminster Cathedral/Robert Harre-Jones/Charles Pott/Stephen Charlesworth/Michael McCarthy/James O'Donnell/Julian Clarkson