Assertion: zither's bridge | /r/HasProperty | movable
Facets:
Source sentences:
text: Koto, also called kin, long Japanese board zither having 13 silk strings and movable bridges.
text: To play in other keys, the new zither has a movable bridge 14 and mute 15, with corresponding indicia 16 on the sound board to identify the key for various positions of the bridge as in FIG.
text: It has 16 or more strings and movable bridges, and the modern guzheng usually has 21 strings and bridges.