China ancient traditional metal musical instrument is?

In ancient China, there was a method to classify musical instruments according to their materials, which was called "eight-tone classification". Eight tones refer to eight materials "gold, stone, earth, leather, silk, bamboo and wood".

"Gold" refers to musical instruments made of metal, such as chimes.

"Stone" refers to a musical instrument made of stone or jade, such as Qing.

"Earth" refers to musical instruments made of clay, such as "Geng" and "Yuan". As early as more than 3,000 years ago in Xia and Shang Dynasties, China produced a performance form similar to the water bowl-"percussion". At first, it was a vessel for our ancestors to hold food and drink, and later it developed into a percussion instrument. Yi Li recorded: "Singing without drumming", and The Book of Songs. Chen Feng also recorded "Kan Qi Strike". It is said that the ancient "percussion" was composed of 12 small bowls. Later, "percussion" evolved into "ou", which is a pottery vessel like a pot, much like a small bowl. During the Warring States Period, the famous Mianchi Club, Lin Xiangru, in response to the humiliation of the King of Zhao, forced the King of Qin to attack Europe. Attacking Ou was very popular in Jin Dynasty. Wanbao was a musical legend in the Sui Dynasty. He often knocked the bowl into songs when eating with people, and the water bowl developed in the Tang Dynasty. }

"Leather" is an instrument made of animal skins, such as drums.

"Silk" refers to musical instruments made of silk strings, such as Qin, Qin and so on.

"Bamboo" refers to a musical instrument made of bamboo, which has the sound of "ba" and "ruler". An ancient flute with two closed ends)

"Mi" refers to musical instruments made of gourd, such as sheng and fu.

"Wood" refers to wooden musical instruments, such as (Brother Mu) four-tone Zhu and (Brother Wu) two-tone Yu.