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jan 1, 1030 - ~ “圭多手” （The Guidonian hand）被发明

Description:

~ 意大利音乐理论家 Guido d'Arezzo 发明“圭多手” （The Guidonian hand）

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Early Music

8 Dec 2017

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1909

Date:

jan 1, 1030

Now

~ 997 years ago

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