Answers: B, D
Guangdong music: popular in the Pearl River Delta. It was originally used as interlude music for local operas. In the 1920s, the main instrument was changed from the original pipa to gaohu and dulcimer. Representative repertoire includes "Backgammon", "Tiger Down the Mountain", "Autumn Moon over the Flat Lake", "Rain Beats the Plantains", "Dragon Race to Win the Gold", etc.
?