Swing

Emerging from the arranged jazz of the late 1920s, swing is a potent, dance-oriented form defined by large ensembles and a propulsive rhythmic pulse. Its architecture is built upon sections of brass and woodwinds trading phrases over a robust rhythm section—piano, guitar, bass, and drums—that establishes a characteristic 'four-on-the-floor' feel. While arrangements by figures like *Fletcher Henderson* and *Duke Ellington* provided structure, they framed spaces for virtuosic soloists. During its peak in the 1930s and 40s, swing became America's dominant popular music, a cultural force broadcast across the nation that defined an era.