羯かっ鼓こ

noun

kakko; Japanese hourglass drum

A small double-headed drum played with sticks on both sides, traditionally used in gagaku (court music). The term refers specifically to this instrument.

• 雅が楽がくでは羯かっ鼓こが重じゅう要ようなリズムを刻きざむ。

  In gagaku, the kakko marks an important rhythm.

• 羯かっ鼓こは両りょう面めんを桴ばちで打うつ太たい鼓こだ。

  The kakko is a drum played with sticks on both sides.