Yazheng (pinyin: zhá zhēng), also known as Yaqin in the south, is the descendant of Zhu, the pioneer of Chinese bowed and stringed instruments, and belongs to the Zhu family. Since its special name appeared in the Tang Dynasty, it has been widely used in the court and the people. Due to the difference in the spread of the region, its shape, performance form and appellation have changed. As far as the shape is concerned, it can be divided into two types: relatively long and relatively short, and the number of strings is between 7 and 13 strings;
In addition, after the guzheng was spread to the Korean peninsula, it gradually evolved into the yazheng, and then integrated into the Korean culture. After spreading to Ryukyu, it evolved into a zither.
The modern popular zither musical instrument is used in Hebei for the accompaniment of local operas in Wu'an Ping tune, known as the zither or zither. The top and bottom plate are made of paulownia wood, with 10 strings, and there are columns under the strings. The columns are made of jujube wood, and the strings are set according to the pentatonic scale.
In recent years, musicians in the Putian area have reformed the wenzhenqin, using steel wire as the string, with 11 to 16 strings, and playing with a ponytail bow. In playing fingering, he has absorbed the skills of Erhu, Zheng and Pipa, and both wiping and playing strings have enriched the expressive power of rolling zheng. It is called lyre or terracotta in Guangxi, with 7 strings and 7 columns. In recent years, musicians have trial-produced lyre with different specifications in different regions and performed in ensemble form. Some increase the 7-string to 16-string, place the instrument flat on the table, hold the bow with the right hand, and press the strings with the left hand, which can play a variety of glissando, overtones and decorative notes. The popular Yazheng in Yanbian, Jilin Province, also known as "yazheng", is mostly used to play singing music.