Back Johannes de Garlandia (Musiktheoretiker) German Juan de Garlandia (músico) Spanish Jean de Garlande (théoricien de la musique) French Johannes de Garlandia Croatian Johannes de Garlândia Portuguese Иоанн де Гарландия (теоретик музыки) Russian Іван де Гарландія Ukrainian
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Johannes de Garlandia (Johannes Gallicus) (fl. c. 1270 – 1320) was a French music theorist of the late ars antiqua period of medieval music. He is known for his work on the first treatise to explore the practice of musical notation of rhythm, De Mensurabili Musica.