-c.1135-1201 (12th century)
-Latin Leoninus, first composer of polyphony known to us by name
-Notre Dame school, trained at the Notre Dame cathedral, later became a priest
-lived in Paris
-first known composer to use polyphony
-1160 completed the Magnus Liber Organi-2 voice polyphonic settings for the responsorial chants of the Mass for the major feast days of the church year
-one of the first composers to indicate precise time values in the music
-wrote primarily in discant style, also in organal
-Latin Leoninus, first composer of polyphony known to us by name
-Notre Dame school, trained at the Notre Dame cathedral, later became a priest
-lived in Paris
-first known composer to use polyphony
-1160 completed the Magnus Liber Organi-2 voice polyphonic settings for the responsorial chants of the Mass for the major feast days of the church year
-one of the first composers to indicate precise time values in the music
-wrote primarily in discant style, also in organal