What is the ninth song?

Jiujiu Song, commonly known as Jiujiu Song, is a popular winter solstice song in China. It vividly records the climate and phenological changes between the winter solstice and the vernal equinox, and also expresses some laws of agricultural activities.

The widely circulated "Song of Eliminating Cold in 1999" said: 1929 will not be filmed. Three, nine, four, nine, walking on the ice. Look at the willows by the river. Seven or nine rivers open and eight or nine swallows come. Ninety-nine and nineteen, plowing cattle everywhere.

Nine Songs is based on the production and life practice of ancient working people in China for generations, and is summarized by using some ecological reflections and meteorological signs in nature. They are quite scientific and still play a guiding role in the arrangement of people's production and life, so they have been popular, widely circulated in people's mouths and reflected in people's behavior.