This is the 10284th most frequent Japanese word.
音頭
"音頭" (ondo) refers to a traditional Japanese musical rhythm or tune used to lead group singing or dancing, often in festivals.
The usage of '音頭' here refers to leading and initiating a group activity, specifically introducing and setting the rhythm of the Bon dance.
お祭りで、村の長老が盆踊りの音頭を取った。
At the festival, the village elder took the lead in initiating the Bon dance.
Here, '音頭' signifies taking leadership in initiating and directing a collective effort for a project.
会社のキャンペーンで、部長が音頭を取って新しいプロジェクトを進めた。
In the company's campaign, the department head led the push for a new project.
In this case, '音頭' is used metaphorically to describe a rhythmic quality or harmony in the poem, extending beyond its literal use.