Yi nationality suona, Yi nationality double-reed air-sounding musical instrument. In Yi language, they are called Mohe, Mohong, Bailai, Zenai, etc. Because the whole body is made of wood, it is also known as the Yi wooden suona. The shape is more simple and bigger than the ordinary copper bowl suona. It consists of a reed whistle, a core, a tube body and a horn.

The so-called small tube of the Yi suona is also relative to the large tube of the suona. It is made of a small bamboo tube with a length of about 2 cm. The bamboo tube selected for the small tube is thinner than the bamboo tube selected for the large tube. The lower part is inserted into the upper part of the large tube, and the upper part is connected to the whistle. The bamboo tube used for the small tube should also be straight and dry, and the connection with the large tube should be tight, and it should not be loose or leaking.

The role of the small tube in the suona part is mainly that the sound transmission holes progress from small to large. Let the sound from the whistle pass through yourself and pass it to the big pipe. Without the small tube as an intermediary, the whistle cannot be organically connected with the large tube because of its small size, and the large tube cannot take over the sound from the whistle and transmit it to the suona rod. Therefore, the role of tubules cannot be ignored.