 His first critical success as a composer came in 1909 with his incidental music, including "Song of the Soul" (recorded by Marguerite Dunlap for Victor Records in 1910), for Edward Locke's three-act play, "The Climax", which premiered on 12 April 1909, at Joseph W. Weber's Music Hall, New York City.After this he spent the next decade composing mostly film music.It is his work in this medium that his legacy rests on.