1, "Hua 'er" is a folk song which is widely popular in Qinghai, Gansu, Ningxia, Xinjiang, Tibet and other western provinces in China. Known as the soul of the northwest, it is a national intangible cultural heritage of mankind. Flowers originated in Linxia, Minxian and other mountainous areas in southern Gansu. The Han, Hui, Tibetan, Dongxiang, Baoan, Tu, Salar and other ethnic groups living here will spread a few melodious flowers whenever they have leisure.

2. Huaer originated in Linxia, Gansu. In the process of development, due to the influence of different popular areas and northwest national culture, different schools and artistic styles have been formed, and Liupan Mountain Wall is one of them.