Launay studied the
history of music with
André Pirro and
Paul-Marie Masson at the
Sorbonne, and the organ with
André Marchal and
Gaston Litaize. From 1939, she was a curator at the
Bibliothèque Nationale de France. She was the organist at the
Notre-Dame-de-Lorette church in Paris during 35 ans. She was buried at , alongside her father Paul Yvon, a member of the
Académie Nationale de Médecine. == Works ==