The unique characteristics of folk art music in the form of musical accompaniment: ① The central rappers of most folk art genres play one or two musical instruments to accompany themselves, or play drums and bangs themselves. Or play a string instrument. For example, the rappers of the drum-type music type play the book drum and calligraphy board by themselves; the rappers of the tan-ci type music type play the sanxian or pipa by themselves; the rappers of the Taoqing type music type play the fishing drum and bamboo board; The rappers who play the dulcimer type play the dulcimer by themselves; the rappers who perform walking-singing types of music play with various props; the rappers who sing the ban-chan type of music play their own bangs, banban, and tablets. Any outstanding folk artist is an artist who is good at "singing", "speaking" and "playing". If there is other musical accompaniment, the rapper will also be the center to complement the tune. ② The selection of accompaniment instruments, except for the central rapper who also plays, the rest are mostly string instruments, such as sanxian, yueqin, pipa, zhuihu, erhu, dulcimer, etc. The accompaniment music is divided into two types: "Guoban music" and "Following tune music".