What are the unique musical instruments of Tibet?

Tibet has its own traditional secular and religious music. Traditional Tibetan musical instruments used for religious music include the bamboo flute, the human torso flute, the conch shell, the cymbal, the tambourine, the bells, the oboe-whipple, the conch horn, two drums made of two skulls placed back-to-back, the four-meter-long horns, drums such as those used in ceremonies at the Potala Palace in Lhasa, the shuangwan (two-stringed violin made of cow's horn, popular in Kham, and the Jangnye six-stringed zither.

Some Tibetan horns for ceremonies and festivals are inlaid with silver, gold, coral and turquoise ornaments. Some monks play Swiss-style horns up to 20 feet long that fold like binoculars for easy portability. The horns produce long, slow, low, deep notes, and they are sometimes accompanied by drums that make a dull, ****ing almost resounding sound.