Trombone is also known as Changming, Tongjiao, Zhaojun, Horse Blowing, Horn and so on. It is Yao, Zhuang, Miao, Yi, Hani, Buyi, Tujia, Uyghur, Han and other nationalities lip-vibrating and chirping musical instruments. Yao language called Dangling. It is called Dabala in Yi language. The Bouyei language is called Manglie. Uyghur is called Kanai. The Han people call it the tuba, long tip, trumpet, aces and so on. Trombones of different ethnic groups and regions have different specifications and lengths.

The Uyghur Kanai is popular in the Xinjiang Uygur Autonomous Region. Made of copper, three sections, 150 cm to 180 cm in length. It can play two tones, a barrel tone and a fifth overtone.

Kanai used to be used in the welcome ceremony of the king and Burke; now it is mostly used in the mass singing and dancing activities of festive festivals, and it is often used as the bass instrument of the Nagra and Surna folk advocacy bands. During the performance, the barrel tone and the fifth harmonic are played from time to time, making it a continuous tone with a fixed pitch in the music. Because of its large volume, the performance effect is particularly strong, which can strengthen the prestige of the band and set off the festive atmosphere. Canai is often used in one pair or two or three pairs, and is rarely used alone. The musicians often stand symmetrically on both sides of the trumpet band, turning the direction of Kanai neatly, spreading the sound in all directions.