This introduction overviews the book’s argument about how early Americans discovered the political power of music. Music had always been ground of contestation for early Americans but following the ratification of the US Constitution conservative elites in particular looked to music to persuade Americans to rise above political and partisan conflict to instead create a more unified, ordered, and deferential society. This conservative tradition of eliciting political effect from music’s improving, elevating, and refining effects as opposed to its more radical, or disruptive, qualities was intended to unite a diverse population in support of its leaders. However, it also placed music at the center of fraught debates over the proper relationship between the American people and their leaders. Despite resistance from various groups, conservative ideals of musical power successfully shaped perceptions of its political use at least through to the end of the American Civil War.