Gloria-Messe de Notre Dame, Guillaume de Machaut. Ensemble Organum

Guillaume de Machaut, sometimes spelled Machault, (c. 1300 April 1377), was an important Medieval French poet and composer. He is one of the earliest composers for whom significant biographical information is available. Guillaume de Machaut was "the last great poet who was also a composer,". Well into the 15th century, Machaut's poetry was greatly admired and imitated by other poets including the likes of Geoffrey Chaucer. Machaut was and is the most celebrated composer of the 14th century. He composed in a wide range of styles and forms and his output was enormous. He was also the most famous and historically significant representative of the musical movement known as the ars nova. Machaut was especially influential in the development of the motet and the secular song (particularly the lai, and the formes fixes: rondeau, virelai and ballade). Machaut wrote the Messe de Nostre Dame, the earliest known complete setting of the Ordinary of the Mass attributable to a single composer, and influenced composers for centuries to come.