Charles Tournemire was a French composer and organist, born on March 22, 1870, in Saint-Étienne. He is best known for his contributions to organ music and his role in the development of French symphonic organ style. Tournemire studied under notable figures such as Gabriel Fauré and Vincent d'Indy, which influenced his musical style. Throughout his career, Tournemire served as the organist at the Basilique du Sacré-Cœur in Paris. He composed various works, including symphonic pieces and liturgical music, with a focus on the organ. His most famous work is the "Suite en Trio," which showcases his innovative approach to organ composition.