Julián Carrillo Trujillo (January 28, 1875–September 9, 1965) was a Mexican composer, conductor, violinist and music theorist, famous for developing a theory of microtonal music which he dubbed "The Thirteenth Sound" (Sonido 13). Carrillo was born on January 28, 1875 in Ahualulco, a village in the state of San Luis Potosí. He was the last of the 19 children of Nabor Carrillo and Antonia Trujillo, who were Native American.
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VIDEO: Concertino a piece for violin, cello, microtonal guitar, octavina, horn, harp and orchestra composed by Julián Carrillo, the mexican composer and music theorist..