Gao Jianli (275 BC - 221 BC), a native of Yan State at the end of the Warring States Period, was the earliest known striker. (Building: String music, similar to guzheng and qin, uses bamboo strikes to make sounds.) Gao Jianli and his friend Jing Ke strike and sing, which is very harmonious. In 227 BC, Jing Ke was ordered by Prince Dan of Yan to go to Qin State to assassinate the King of Qin. Gao J...