What are the characteristics of Guizhou qinshu's song lyrics?

The traditional lyrics of Guizhou qinshu are called play words. The lyrics are all seven-word sentences or cross sentences, emphasizing rhyme, and the text is clear and elegant, mostly the works of the literati. The stories are based on a wide range of materials, including historical themes such as "The Playing Words of the Warring States" and "The Playing Words of the Southern Song Dynasty"; classical literature such as "The Playing Words of the Western Chamber", "The Playing Words of Zhuo Wenjun", "The Playing Words of the Dream of the Red Mansion", "The Playing Words of the Pipa Book", etc.; and folk legends such as "The Playing Words of the Pearl Pagoda", "The Playing Words of the Pavilion of the Returning Dragon" and so on. The most influential author is Wang Shih-ching, who signed his name as Gu-chiku Cang-nyong-nyong, and his masterpieces include "Two Plums", "Jin-hyang-ting", "Legend of the Wind and the Moon", and "The Sea of Hate", and so on.