What kind of zither did Boya drum on?

The guqin, also known as the yaoqin, jade qin, seven-stringed zither, is one of China's oldest plucked instruments, the earliest existing guqin objects for the Zeng Houyi Tomb unearthed in the early Warring States period of the guqin, the guqin has a long history, ranked in the traditional Chinese culture of the four arts of the "qin, chess, calligraphy and painting," the first, on behalf of the Oriental music, art, the guqin has a unique flavor, its tone is melodious, elegant, with all the things in heaven and earth. Art, the guqin has a unique flavor, its tone melodious, elegant, with the changes of heaven and earth.