koto
nounA Japanese stringed instrument usually having 13 silk strings stretched over a long, hollow, wooden body.
nounA Japanese musical instrument, consisting of a long box over which are stretched thirteen strings of silk, each five feet in length and provided with a separate bridge. It is played with both hands, like the harp. The tuning is effected by shifting the position of the bridge, and semitones are obtained by pressing the string behind the bridge.
nouna
Japanese stringed instrument that resembles a zither; has a rectangular wooden sounding board and usually 13 silk strings that are plucked with the fingers