ploy

The ploy (Khmer: ព្លយខ្មែរ) is a Cambodian wind instrument. It is constructed of a gourd body with 5 to 7 bamboo tubes protruding from the body, and a bamboo pipe set at a right angle to the gourd. Musicians blow air in through the bamboo tube, which fills the gourd "wind chest" and exits through the other bamboo tubes. Each of the bamboo sound-tubes has a metal rod inside, that vibrate in the air passing through the tube.