远古之时,黄帝命伶伦为律,闻凤凰之音而制十二律,是为黄钟、大吕、太簇、夹钟、姑洗、仲吕、蕤宾、林钟、夷则、南吕、无射、应钟。瑶琴七弦,为宫、商、角、王、羽五音,一弦为黄钟,三弦为宫调。五调为慢角、清商、宫调、慢宫、及蕤宾调,以此而制首具瑶,名曰:凤瑶。此凤瑶古琴周 In ancient times, the Yellow Emperor ordered Jalan to be a law. He smelled the sounds of Phoenix and made twelve laws. It was for Huang Zhong, Da Lv, Tai Tu, Jia Zhong, Gu Xi, Zhong Lu, Zhai Bin, Lin Zhong, and Yi Zhe. Nan Lu, no shot, should bell. The seven strings of the Yaoqin are five-tones for palaces, businesses, horns, kings and feathers, one for the yellow bell and three for the palace. The five adjustments are slow angle, Qingshang, Gongtun, Slow Gong, and Yibin. In this way, the system is the first to have Yao and Feng Yao. This Feng Yao Guqin Zhou