Original sentence: At the outbreak of World War One she and her family fled to New York City.Besides quarter-tone works, Mildred Couper has written incidental music for plays at the Lobero, and also a Dance-Opera And on Earth Peace, to words by Scottish-Argentine artist Malcolm Thurburn.Establishing a studio in Santa Barbara she started her quarter-tone experiments, the first work in this medium being a ballet, Xanadu, which was performed in the production of Eugene O'Neill's Marco Millions in the Lobero Theatre
Edited sentence: At the outbreak of World War I, she and her family fled to New York City.Besides quarter-tone works, Mildred Couper wrote incidental music for plays at the Lobero, and also a Dance-Opera And on Earth Peace, to words by Scottish-Argentine artist Malcolm Thurburn.Establishing a studio in Santa Barbara, she started her quarter-tone experiments, the first work in this medium being a ballet, Xanadu, which was performed in the production of Eugene O'Neill's Marco Millions in the Lobero Theatre