What are the characteristics of folk songs in Dan County, Hainan Province?

Hainan Danxian folk songs have ups and downs in intonation style, mostly in four-sentence style. Lyrics pay attention to strict leveling and meter, and the words are simple and elegant. The "tune" originated from folk songs is a form of duet between men and women in groups, with the same word case as folk songs. Most of them use five-tone fine-tuning line cavity, and some use palace mode and monk mode. The military style of folk songs is similar to poetry, while Haibei Tune is rich in Shan Ye pastoral style, and the fishing songs and boat songs in dialects are euphemistic.