Petrus de Cruce (born 1270)

Born 1270 CE.

Petrus de Cruce (also Pierre de la Croix) was active as a cleric, composer and music theorist in the late part of the 13th century. His main contribution was to the notational system.

Text from the Wikipedia article Petrus_de_Cruce, licensed CC BY-SA 4.0.

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Petrus de Cruce (born 1270)

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