noun
clave-like folk instrument; two bamboo pieces beaten together
A traditional Japanese percussion instrument made of two bamboo sticks struck together, used in folk music such as the こきりこ節 (Kokiriko-bushi) from Toyama Prefecture.
こきりこ節では、こきりこを打ち鳴らしながら踊る。
In Kokiriko-bushi, they dance while striking the kokiriko together.
この民謡にはこきりこが欠かせない。
The kokiriko is indispensable for this folk song.
The name こきりこ is likely onomatopoeic, imitating the sound of the bamboo pieces striking together. The kanji spellings are ateji, with 小切り子 suggesting 'small cut pieces' and 筑子 possibly referencing an ancient Chinese instrument, though the exact derivation is uncertain.