Sounding stone

A sounding stone or qing (磬) (rarely 鸣石 or 响石) is an ancient Chinese musical instrument, usually L-shaped. The set of qing is called bianqing. The shape of such stones was often quoted as description for the reverent ritual pose.
Important information on qing nomenclature is contained in the Erya dictionary: the large sounding stone was called xiāo 毊, and a solo performance on qing, jiǎn 寋. However, the mentioned names do not have much currency in the classical literature.