筚 Zong (pinyin: bì zǒng) is a single-reed gas-sounding instrument of the Jingpo and De'ang peoples. Due to the differences in popular areas, ethnic branches and dialects, it is also called Yuman, Nongzhan, Yuye, Mengyue, Gelang, Ajian Sanji, Aji Sanji, etc. It is popular in Luxi, Ruili, Longchuan, Yinghe, Lianghe, and Tengchong and Longling in Baoshan, Dehong Dai and Jingpo Autonomous Prefecture, Yunnan Province.

The 筚 always consists of two sound tubes and reeds of different lengths and thicknesses. The sound tube is made of bamboo, with a copper reed at the head. The long and thick one is the main tube. There are six (front five and one rear) circular sound holes on the tube body, which can produce seven melodic tones. For the auxiliary tube, only the reed is set, the sound hole is not opened, and only the barrel sound is emitted. In some areas, a small gourd-made resonator is often placed horizontally at the end of the main pipe, which can make the tone extraordinarily rich. The total size of the kiln is different, and it can be divided into three types: large, medium and small.

Most of the music are popular folk songs such as "Mountain Songs", "Love Songs" and "Songs and Dances".