Juliette-Marie Olga Boulanger
(1893-1918) was the young sister of influential music educator Nadia Boulanger
. Besides composition and music theory, she studied piano, organ, violin, cello, and harp. She was the first woman to compete (in 1912) and win the Prix de Rome (in 1913).
Unfortunately she was chronically ill since her early childhood and passed away at 24. Many of her compositions are either unfinished or lost. Conductor Igor Markevitch (among others) praised her work greatly and claimed she would have been one of the greatest composers of the 20th century, given time.
Read more about Lili Boulanger
See also here
to learn more about her music (you can also listen to short audio clips on this page.)
Fondation Internationale Nadia et Lili Boulanger