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jan 1, 1030 - Guido d'Arezzo's Micrologus
Description:
Guido fit all notes onto the human hand with a hexachord system and on a four line staff
Added to timeline:
Music History Timeline
By
Jair Griffin
20 Apr 2020
0
0
786
Date:
jan 1, 1030
Now
~ 996 years ago
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