koto bridge
The movable bridge of a koto (Japanese zither), used to adjust the pitch of each string.
Tune the koto by moving the bridges.
琴 refers to the koto instrument itself, while 琴柱 specifically denotes its bridges.
Standard kanji spelling for the bridge of a koto.
Alternate kanji spelling using 箏, which specifically refers to the Japanese koto.
Alternate kanji spelling using 筝, a variant of 箏.
Compound of 琴 (koto, 'Japanese zither') and 柱 (ji, 'pillar, support'). The reading じ is a voiced form of し (柱).