郑卫之音

Explanation: Refers to the time of Zheng and Wei Zheng and Wei Spring and Autumn. Refers to the Warring States Zheng, Wei and other countries folk music. 　　Source: "Book of Music" Weiwen Hou Zi Xia said, asked to 'listen to my side crown and ancient music, the fear of lying; listen to the sound of Zheng and Wei, then I do not know tired. I question if their ancient music of, why? The new music is so, why? '"