Chapter 17 Creator of Jingfang/Liushilu

Jingfang (77-37 BC), a famous musicologist in the Western Han Dynasty.His original surname is Li, and his courtesy name is Junming.Dongjun Dunsheng (now southwest of Qingfeng, Henan) was born.He was a Ph.D. during Emperor Yuan of the Han Dynasty.Later, because of the monopoly of Shi Xian and others, he was imprisoned and killed at the age of forty.He once studied "Yi" with Jiao Yanshou, and is the founder of "Jing's study" of "Yi" in Jinwen. Since the pre-Qin period, China has used the "three-point profit and loss method" to find out the twelve rhythms of Huangzhong, Taicu, Dalu, and Jiazhong, and solve the problem of absolute pitch and relative pitch in music.However, after generating the Twelve Laws, one cannot return to the Huang Zhong Law.To solve this problem, one is to continue to use the three-point profit and loss method after the twelve laws. This method will encounter a lot of trouble in practice and has almost no practical value; the other method is to artificially adjust each The height of the tone allows it to return to the Huangzhong temperament, which is the twelve equal temperament that has been widely used in modern times.Jingfang adopts the first method, and has always produced Liushilu.

Since the pre-Qin period, pipes have been used as a standard for pitch calibration. Jingfang discovered the problem of correcting the mouth of the rhythm pipe. He thought that using bamboo pipes to set the pitch was inaccurate. ". He was also actively involved in the improvement of musical instruments.It is said that the Qiang flute originally only had four holes, but Jingfang improved it to five holes and made it Xiao.