Sacred Harp is a form of American shape-note singing that originated in the early 19th century. It uses a unique notation system where different shapes represent different musical notes, making it accessible for singers of all skill levels. The music is typically sung in four-part harmony and is often performed in community gatherings, emphasizing participation over perfection. The tradition is rooted in Christian worship and often features hymns and spiritual songs. Sacred Harp singing is characterized by its lively and robust style, fostering a sense of community and shared experience among participants.