Martinon was born in Lyon, where he began his education, going on to the Conservatoire de Paris to study under Albert Roussel for composition, under Charles Munch and Roger Désormière for conducting, under Vincent d'Indy for harmony, and under Jules Boucherit for violin. He served in the French army during World War II, and was taken prisoner in 1940, composing works such as Chant des captifs while incarcerated. Among his other compositions are four symphonies, four concertos, additional choral works and chamber music.