Nadia Boulanger
She grew up in a musical family. Her first success was when she was at the Conservatoire de Paris. She believed, that she had no talent as a composer, she gave up that path. She became a teacher instead. As a teacher, she had a large influence on many young copmosers of the 20th century. Most of them were from the United States and other English-speaking countries. Among her students were people who later became important composers, soloists, arrangers and conductors. Some of them were  Grażyna Bacewicz, Burt Bacharach, Daniel Barenboim, Lennox Berkeley, İdil Biret, Elliott Carter, Aaron Copland, John Eliot Gardiner, Philip Glass, Roy Harris, Quincy Jones, Dinu Lipatti, Igor Markevitch, Astor Piazzolla, and Virgil Thomson.