Banqiang is divided into two major systems: "Bangzi" and "Erhuang". This session will introduce and demonstrate the knurling types of Bangzi loose board. It often appears in Cantonese opera songs, including short sentences, long sentences and Yi-anti knurling. The characteristic of knurling is that it has melody and no dingban. The actor sings the lyrics first, and the music is accompanied by the music according to the scale sung, creating the effect of singing first and playing later.
