The Guidonian hand was a mnemonic device used to assist people learning to sight-sing. Some form of the device may have been used by Guido of Arezzo, a medieval music theorist who wrote several treatises, including one instructing singers in sightreading.
The Guidonian hand was a mnemonic device used to assist people learning to sight-sing. Some form of the device may have been used by Guido of Arezzo, a medieval music theorist who wrote several treatises, including one instructing singers in sightreading.
Source: Wikipedia "Guidonian hand" · CC BY-SA 4.0
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