古 ㄍㄨ ˇ gǔ 筝 ㄓㄥ zhēng 古 ㄍㄨ ˇ gǔ 箏 ㄓㄥ zhēng zither or guzheng large zither with 13 to 25 strings, developed from guqin 古琴[gu3 qin2] during Tang and Song times