Bamboo leaf flute, a single-reed gas-sounding instrument of the Dong nationality. In the Dong language, it is called dashing. It means a flute with bamboo leaves as a spring, so it is also referred to as a leaf flute. The double-pipe bamboo flute is made by tying two single-pipe bamboo flutes side by side. Folks do not stick to specifications, and they are mostly made at will, s...