Guzheng has five strings corresponding to five sounds. What are they?

Guzheng is the most famous musical instrument in China culture. Since ancient times, "Zheng" is its special name. 1920s changed its name to Guzheng to distinguish it from Zheng. There are two kinds of opinions about Zheng: "Scholars don't withdraw their instruments without reason" and "Zuo Zheng You Shu". It ranks first among China's four traditional arts, namely "upright calligraphy and painting", and is regarded as an elegant representative. It is also an accompaniment instrument for literati singing. Guzheng has five strings, and the corresponding five sounds are Gong, Shang, Jiao, Zheng and Yu. The extended information five-string Zheng is a plucked musical instrument, which belongs to a kind of guzheng and has a long history. Now all guzheng has seven strings, and the seven-string zither is more extensive. Five-string Zheng has national characteristics, soft pronunciation, mellow tone and low volume. Can be used for solo or accompaniment of national songs and dances. The earliest' guzheng' has only five strings, which correspond to the five sounds of' the words of the Gong Shang Jiao Zheng', and at the same time, it coincides with Jin Mu's five elements of fire, water and soil. According to legend, Zhou Wenwang later added a string called Wen Xian; Zhou Wuwang added a string called banjo, and then the guzheng fixed the shape of seven strings.