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Jean-Jaques Rousseau -Composer -His Aunt Suzanne was passionate about music and heavily influenced Rousseau's interest in music. Rousseau took formal instruction in music at the house of Francoise-Louise de Warens. She housed Rousseau on and off for about 13 years, giving him jobs and responsibilities. In 1742, Rousseau developed a system of musical notation that was compatible with typography and numbered. He presented his invention to the Academie Des Sciences, but they rejected it, praising his efforts and pushing him to try again. In 1743, Rousseau wrote his first opera, Les Muses Galantes, which was first preformed in 1745.

Works: Les Muses Galantes (1743)

http://www.famouscomposers.net/jean-jacques-rousseau https://www.britannica.com/biography/Jean-Jacques-Rousseau