"Baoleng Diao" is also called "Baoleng Opera". It has many lyrics, wide content and strict format. The melody is unique, especially the coloratura part is clean and neat, with strong artistic characteristics of folk coloratura. After "Baoleng Diao" was excavated and sorted out, it immediately attracted the attention and recognition of the music industry and became a folk coloratura soprano solo song in China. It has now developed from solo to chorus, dance music, instrumental music, symphony and other art forms, with high academic and artistic value. Chengwu County is located in the southwest of Shandong Province, belonging to the junction of Jiangsu, Shandong, Henan and Anhui. Chengwu was established as a county during the Qin Dynasty, with a long history and a splendid culture. There are many historical sites in Chengwu, including the ancient city site of Chenghu, Jixiang Temple, and Confucius Temple Monument. Chengwu folk songs have a long history. In 1961 alone, a county-wide folk song survey collected 370 folk songs. Among them, "Baoleng Diao" is the most famous. Historically, there were many temples in Chengwu. At the temple fairs, there were always elderly women carrying loads and chanting sutras on the spot. They danced and sang songs, asking for alms and good deeds from the pilgrims. This form was called "carrying sutras". "Baoleng Diao" is one of the songs carried by sutras. The existing lyrics of "Baoleng Diao" are composed of words and sentences from a poem. The poem is: the clear sky is like a mirror, the pine peaks are like phoenixes, the star pavilion is quiet, and the scenery is moving and the wind is light. Each word of the poem is composed of four paragraphs, a total of sixty-four paragraphs, and the format of the lyrics is strict: the end of the first sentence is "Bai Leng Leng Leng", the end of the second sentence is "Yi Dian Hong", the third sentence is the words in the group poem, and the fourth sentence is "Jing Bao Leng". The lyrics contain a wide range of content. Some of the lyrics come from Buddhist scriptures, filial piety books, folk stories, etc. The tune is folk songs or local operas. It cleverly combines local folk culture and folk music. After "Baoleng Diao" was excavated and sorted out. Yao Yuelan, Zheng Baohua and other singers sang "Baoleng Diao" at the Shandong Folk Song Festival and the "Shanghai Spring" Concert, and the records were recorded by Shanghai Record Factory. In 1980, - participated in the National Folk Singing Festival, and his singing of "Baoleng Diao" won praise from experts and audiences. In 1982, - sang "Baoleng Diao" for the first time at the Spring Festival Gala. Over the years, "Baoleng Diao" has been sung by Wu Bixia and other singers in major cultural and artistic activities for many times, and it has been sung for a long time. The Central Conservatory of Music, China Conservatory of Music and other colleges and universities have included "Baoleng Diao" in music textbooks. The symphony "Baoleng Diao" was performed by the China National Symphony Orchestra and was widely praised; the guzheng piece "Baoleng Diao" has been designated as an eighth-level repertoire by the National Folk Instrumental Music Examination Committee. The academic value of "Baoleng Diao" has been recognized by the music community.