The cun flute (pinyin: cùn dí), also known as mubimei, is a single-reed gas-sounding instrument of the Yi nationality, popular in the Chuxiong Yi area of Yunnan.

The inch flute got its name because of its short body. According to legend, the creator of the inch flute was Qi Ruyun, a young man of the Yi nationality. In that year, Qi Ruyun chopped up the mangosteen bamboo. After careful selection of materials and careful operation, a piece was made. The small and exquisite Wu Lu, just when he was rejoicing his success, accidentally broke Wu Lu in half, and the six sound holes became three. He was very annoyed, but unwilling to stop there, he simply picked up the half of the reed with the reed and blew it hard, but he accidentally pressed his teeth on the reed and made a beautiful and beautiful sound. He repeatedly groped and tried to play, and realized that the segmental vibration of the reed could change the pitch. A brand new instrument was born.

The inch flute has a bright pronunciation, soft timbre and high volume. Through the coordination of tongue, teeth, lips and air, the performer can play music as he pleases, and is especially good at expressing cheerful, bright and enthusiastic emotions, and is suitable for playing lyrical and singing melodies. It can be used for solo or ensemble. It is a self-entertainment musical instrument commonly used by the Yi people, and it is also used to accompany folk festival songs.