Petrus de Cruce
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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.
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.