tapkar

…(1) Niwen‐apkas (rough walking): When something unusual happens in a village, the village elders take the lead, and the men draw their swords and shout in a loud voice, “Hoo-hum! Hoo-hum!”, while the women follow behind, brandishing their sticks and shouting in a thin, shrill voice, “Hoi! Hoi!” They form a single file and step firmly on the ground, step by step, to scare away evil spirits. (2) Tapkar (dance): At a drinking party, when the excitement is at its peak, the elders of the troupe stand together and perform a dance in which they stretch their arms out to the left and right, turn their palms up, bend their elbows slightly, and quietly move them up and down while stepping firmly on their feet and taking several steps diagonally to the side, then repeat the same movement and return to their original position. At this time, they utter a singing voice with a unique tone called "sakehau" (drinking voice) in sync with their movements.

*Some of the terminology explanations that mention "tapkar" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…(1)ニウェンアプカシniwen‐apkas(荒い歩行)　村に異変が起こったとき，部落の長老を先頭に，男は太刀を抜きつらね，太い声で〈フオー･フム！　フオー･フム！〉と叫び，女はその後につづいて杖をふりかざし，細くかん高い声で〈ホーイ！　ホーイ！〉と叫びながら1列縦隊になって，魔を威嚇するため一歩一歩強く大地を踏みしめていく呪術的な踏舞行進である。(2)タプカルtapkar(踏舞)　酒宴の席上，興ようやくたけなわになるにおよんで，一座の長老たちがこもごも立って演じる所作で，両手を左右にのばし，てのひらを上に向けてひじを少し曲げ，それを静かに上下するとともに，一歩一歩力足を踏みしめながら斜め横に数歩進んで，再び同じ動作を繰り返しながら，もとの位置に復するものである。このとき，所作に合わせて〈サケハウ(酒声)〉と称する特有の調子の歌声を発する。…

※「tapkar」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報