The 古琴 gǔ​qín, a traditional Chinese seven-stringed zither; also called a 七弦琴 qī​xián​qín.

book; volumes or works of text or drawings bound together

(bound form) a general name for musical instruments, especially stringed ones like the 钢琴 gāng​qín, 提琴 tí​qín, or 胡琴 hú​qín; also used for certain keyboard and reed instruments

(bound form) certain forms of folk storytelling or oral performance