Bai (pinyin: bài) is a double-reed air-sounding instrument of the Li nationality. Li is also known as Lilaro. The Han people call it the bamboo suona. Popular in Ledong, Dongfang, Changjiang and other places in Hainan Province. When playing, its posture and method are similar to suona. In terms of sound quality, the pronunciation of Bai is clear and soft, and the tone is melodious and sweet.

The earliest worship was a wind instrument made by the Li people imitating the suona. The body and bell mouth were made of wood. However, Hainan Island, which is evergreen in all seasons, has a unique bamboo forest, so later the Li people used the locally produced "Xile" bamboo to make it. The worship uses six or seven bamboo tubes with different lengths and thicknesses, which are connected in sequence from small to large, and from thin to thick. The tube body specifications vary, the small one is 20 cm long, the big one is 35 cm long, the common one is 25 cm long, and the diameter is 0.5 cm to 1.3 cm. ) sound hole. A spring whistle made of lychee leaves or coconut leaves is placed at the head of the tube, and a gas card made of round thin wood sheets is set at the lower end of the whistle. , and sometimes rolled from leaves or cardboard. The common worship is about 32 cm high.

When playing, its posture and method are similar to suona, and the pronunciation is also vivid. In terms of sound quality, Suona is high-pitched, bright, with a metallic tone; Bai's pronunciation is clear and soft, and the tone is melodious and sweet. Bai's range g-c? 2. More expressive. It can play solo and participate in instrumental ensemble. It is one of the main musical instruments commonly used by the Li people in festive and entertainment occasions such as festivals, harvest hunting, weddings and funerals.