Complex sentence: In 1937, Jo worked behind the scenes with Fred Astaire on the soundtrack of "A Damsel in Distress", creating the arrangements for the film, and with her sisters she arranged the backing vocals for "Nice Work If You Can Get It".
Split into simpler sentences: In 1937, Jo worked behind the scenes with Fred Astaire on the soundtrack of "A Damsel in Distress". She created the arrangements for the film and with her sisters, the backing vocals for "Nice Work If You Can Get It".