These are songs Cantigas Celts XIII century. Music made in the Kingdoms of Castile, Leon and Andalusia singing events collected in the two Britains, the highest and lowest. Canterbury, St. Dustan, monasteries and especially Britons dispute Merlin, wizard pagan, against Jews in defense of Santa Maria, are some wonderful ballads that make up this repertoire unpublished at the other end of the Atlantic Ocean in the Middle Ages and are a rare display of matter in the songbook alfonsí Breton.
François Couperin is best-known for his instrumental and keyboard works. He also composed quite a number of vocal works, but that part of his output remains in shadow with the exception of the three Leçons de Ténèbres which count among the most renowned vocal works for Passiontide. These also belong among the very few vocal compositions from Couperin's pen which were printed during his lifetime. Most of his vocal works are preserved in manuscript and it is assumed that a considerable part of his output in this genre has been lost.