A mouth harp made of bone is on display at the Xi′an Conservatory of Music in Xian City, Northwest China’s Shaanxi Province, May 21, 2018. The musical instrument excavated from the Shimao ruins in Shenmu City measures about 9 centimeters long by 1 centimeter wide and is 2 millimeters thick. It is estimated to have been made 4,000 years ago. Some 20 such mouth harps made of bone were found at the ruins. (Photo/VCG)
Artist Chen Xuanpeng shows a mouth harp made of bone at the Xi′an Conservatory of Music in Xian City, Northwest China’s Shaanxi Province, May 21, 2018. The musical instrument excavated from the Shimao ruins in Shenmu City measures about 9 centimeters long by 1 centimeter wide and is 2 millimeters thick. It is estimated to have been made 4,000 years ago. Some 20 such mouth harps made of bone were found at the ruins. (Photo/VCG)
Artist Chen Xuanpeng shows a mouth harp made of bone at the Xi′an Conservatory of Music in Xian City, Northwest China’s Shaanxi Province, May 21, 2018. The musical instrument excavated from the Shimao ruins in Shenmu City measures about 9 centimeters long by 1 centimeter wide and is 2 millimeters thick. It is estimated to have been made 4,000 years ago. Some 20 such mouth harps made of bone were found at the ruins. (Photo/VCG)
