There are still exist An Shifang Songs of the era of Emperor Liubang, Jiaosi Songs of the era of Emperor Wu about the ancient emperors’ritual music of Han Dynasty,.

Comparative Research between An Shi Fang Zhong Ge and Jiao Si Ge in the Western Han Dynasty;

Investigating Emperor Wu of Han s Spiritual World by Examining Jiao Si Ge;

An Investigation of the Evolution of the National Sacrificing System during the Reign of Emperor Wu of Han Dynasty and the Creation of The Nineteen Suburban Sacrifice Songs

With the development of society,the Jiao Si rituals develop into the political system safeguarding the feudalist imperial sovereignty from the cultural tradition of worshipping various spirits,such as the heaven and earth,sun and moon,famous mounts and long rivers,seasonal gods,and ancestors,etc.