Fishing songs, also known as fishing songs, fishing music and fishing words, are the original names of Tang, and later people wrote lyrics for them, which became the epigraph name. Originally monotonous 27 words, four rhymes. A few words in the middle, using duality as an example. Later, this tone was mostly disyllabic. "Zi" means "Qu" and "Yu Gezi" means "Yu Ge".