(music) the most common method of tuning the koto, often known as Yatsuhashi Kengyō's way

koto: a Japanese zither derived from the Chinese guzheng / (colloquial) guzheng: a Chinese zither on which the koto was based

tune

tuning a musical instrument

matter of taste

condition, state, fettle, kilter / tune, tone, key, pitch, time, rhythm

(colloquial) a girlfriend (a female partner in a romantic relationship)

(formal) Female third-person singular pronoun; she, her, girlfriend

(literary) they (about women or girls)

a (single) pair, couple, brace (male-female pair of animals) / (gagaku, bugaku, dance) a style of performance consisting of pairs of left and right dances