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It was around this time when a new method to teach singing was invented by a monk and choirmaster named Guido de Arezzo.
He was born
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The Notre Dame school of polyphony was the center of activity. Rhythmic notation first appeared in this period. Also known as the ars antiqua; it is during this time when the motet initially developed.
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Léonin is born
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perotin is born
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Phillipe de vitry is born
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Guillaume de Machaut is born
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starts the development of the gregorian chant
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The development of organum, an early form of counterpoint.
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