French music teacher and conductor. She studied under Gabriel Fauré at the Paris Conservatory, where she later taught, as well as at the École Normale de Musique and the American Conservatory at Fontainebleau. Many distinguished composers were her pupils, including her sister, Lili Boulanger, Lennox Berkeley, Aaron Copland, Jean Françaix, Roy Harris, Walter Piston, and Philip Glass.