bo is a kind of percussion instrument in ancient my country. It is made of bronze. It is composed of oblong bells of different sizes arranged in the order of pitch. It is hung on a huge bell stand, and the bronze bell is struck with a wooden hammer. Make different tones, because the tone of each bell is different, beat according to the musical score, you can play a wonderful music.

According to literature records and unearthed cultural relics, it is found that my country had chimes in the Western Zhou Dynasty. At that time, chimes were generally composed of three large and small pieces.