The division of style, elegance and fu is based on the difference of music. "Wind" is music with local color relative to Wang Ji directly ruled by the Zhou Dynasty. The "National Wind" in the Tenth Five-Year Plan is a folk song in fifteen places, except harmony. "Ya" and "Xia" were commonly used in ancient times. Fenghua also means "Zheng". At that time, Wang Ji's music was considered as typical music. There are always different opinions about the difference between "elegance" and "Xiaoya", and there are also differences in musical characteristics and applicable occasions. "Ode" is music specially used for ancestral temple sacrifice. The preface to Shi Mao said