When1: 1163
When2: 1190
Who: Leonin or Leoninus
What: composer
Where: Paris, France
works\ Magnus Liber Organi or Great Book of the Organ [1163 to 1190: for masses]
Detail: He lived 1135 to 1201 and worked at Notre Dame Cathedral. He added second descant part above the Gregorian chant and so composed organum polyphonic music. He developed chant-note rhythm and time notation.
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2-Music-History-Classical Music
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Date Modified: 2022.0224