gong（Pinyin:luo） is a traditional percussion instrument, also known as the gong because it is made of copper. Different places have different gongs. Wooden gongs, leather gongs, sieve gongs, earth gongs and gongs are all made of copper.
Its structure is relatively simple. The body of the gong is a circular arc, and the surrounding is fixed by the frame of the gong body.
The body of the gong is a circular arc, mostly made of copper, and its surrounding is fixed by its own frame; the gong is a wooden one. There are various sizes of gongs. When playing small gongs, use the left hand to hold the gong body and the right hand to strike the gong; large gongs must be hung on the gong stand to play.
The main feature of gongs is that they have no fixed pitch. Its sound is low, loud and strong, with a long and lasting aftertaste. Usually, the sound of the gong is used to express a tense atmosphere and ominous omen, which has a very unique artistic effect.