Birthdate: January 28, 1875

Sun Sign: Aquarius

Birthplace: Ahualulco, Mexico

Died: September 9, 1965

Julián Carrillo was a Mexican composer, violinist, conductor, and music theorist. He is best remembered for creating a theory of microtonal music which he called The Thirteenth Sound. Early in his life, Julián Carrillo developed an interest in the study of the mathematical and physical basis of music, which later helped him in creating The Thirteenth Sound.