Pérotin

Pérotin was a medieval composer from the Parisian school of Notre Dame, active during the late 12th and early 13th centuries. He is best known for his contributions to early polyphonic music, particularly for his use of organum, a style that involves the addition of voices to Gregorian chant, creating rich and complex harmonies. Pérotin’s works, such as 'Viderunt Omnes,' are celebrated for their structural sophistication and innovative use of rhythm.