Dance music is a broad genre of electronic music that is created specifically for the purpose of being played in nightclubs, parties, and other venues where people dance. It encompasses a wide variety of sub-genres, including house, techno, drum and bass, and trance, among others. It often features a strong beat, repetitive rhythms, and synthesized melodies. Dance music has been popular since the 1970s and continues to evolve and change with the times.