Apx. lifespan of Guido of Arezzo (4 line heightened numes, heighted numes and single line numes develop after charlamagnes birth and before guidos birth) (1 jan 990 ano – 1 jan 1050 ano)

Descrição:

Hugely important monastic music theorist, popularized if not invented the 4 line staff, as well as the idea of solmetization (think the guidonian hand.)

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