Folk art and singing, solo performance, has a long history. "Chầm riêng" is singing, "Chà pây" is the name of a type of instrument originating from India. “Chầm riêng Chà Pây" is “đàn ca” or “ca kể chuyện”. This musical instrument is also used in ceremonial music, wedding music and sacrifices to gods or singing and dancing. When playing, artists rely on stories to improvise into wonderful seven-word verses to sing. They also improvise with real situations, so this art develops in a variety of content and expression styles. The Chapei box is similar to the bottom lute of the Vietnamese according to the pentatonic scale system. Chapei has a deep, warm, deep bass, suitable for narrative and emotional music. Before performing, they make offerings to the Patriarch.