Book excerpt: The harp became the emblem on Irish coinage in the 16th century. Since then it has been symbolic of Irish culture, music, and politics - finally evolving into a significant marker of national identity in the 18th and 19th centuries. The most important period in this evolution was between 1770 and 1880, when the harp became central to many utopian visions of an autonomous Irish nation, and its metaphoric significance eclipsed its musical one. Mary Louise O'Donnell uses these fascinating years of major social, political, and cultural change as the focus of her study on the Irish harp.