A double ring tube is a round bamboo or wooden A barrel-shaped percussion instrument, thin in the middle and thick at both ends. The barrels on both sides can produce two sounds of different pitches.
The double horn is a cylindrical percussion instrument made of bamboo or wood. The cylinder is thin in the middle and thick at both ends. The thin middle part is solid, with a round hole open, into which a small stick can be inserted. When playing, you can hold the small stick in your hand, or you can directly hold the solid middle part, and use the other hand to hit the hollow barrel part with a small wooden stick to produce sound. The sound of the double-sounding tube is crisp and strong. There are two thin openings on both sides of the tube. Due to the different lengths of the openings on both sides, the pitches played are also different.
The two sides of the double-sounding tube have different pitches. When playing, one holds the tube or a wooden stick inserted into the tube, and the other holds the wooden stick to strike the two sides of the tube.
