An advertisement in the sheet music of the song Goodbye Broadway, Hello France (1917) announces: Music will help win the war This ad hits upon an American sentiment expressed not just in advertising, but heard from other sectors of society during the American engagement in the First World War. It was an idea both imagined and practiced, from military culture to sheet music writers, about the power of music to help create a strong military and national community in the face of the conflict; it appears straightforward. Nevertheless, the published sheet music, in addition to discourse about...