Chinese Hulusi Gourd Cucurbit Flute Bb Yunnan Ethnic Instrument with Case The hulusi is a free reed wind instrument from China, originated in Yunnan Province. Its sounds are as soft and graceful as shaking silk. In addition, it is simple and elegant in appearance, easy to learn, small and easy to carry. It is very popular among music fanciers and tourists. Hulusi can be divided into three types including high, medium, and low. Bb tone is very easy to learn and control. We have more than 10 years experience of making hulusi. Our products are exquisite and high quality, with reasonable price. Dual tone hulusi - the high tone sub pipe makes single sound only, while the other sub pipe is a merely ornamental.