ballad, Form of short narrative folk song. Its distinctive style crystallized in Europe in the late Middle Ages as part of the oral tradition, and it has been preserved as a musical and literary form. The oral form has persisted as the folk ballad, and the written, literary ballad evolved from the oral tradition. The folk ballad typically tells a compact tale with deliberate starkness, using devices such as repetition to heighten effects. The modern literary ballad (e.g., those by W.H. Auden, Bertolt Brecht, and Elizabeth Bishop) recalls in its rhythmic and narrative elements the traditions of folk balladry.