Darius Milhaud was a French composer born on September 4, 1892, in Aix-en-Provence. He was a prominent figure in the 20th-century music scene and is known for his innovative use of polytonality, which involves combining multiple keys simultaneously. Milhaud was also a member of the Les Six, a group of composers who sought to break away from the traditions of the Romantic era. Throughout his career, Milhaud composed a wide range of works, including operas, ballets, and chamber music. He was influenced by various musical styles, including jazz and Brazilian music, reflecting his diverse interests. Milhaud passed away on June 22, 1974, leaving a lasting impact on modern music.