expression, godan verb (-ru)
take the lead; lead a group; lead a toast or cheer
Used when someone initiates and guides a group activity, such as a project, a toast, or a cheer. Often implies setting the pace or direction for others to follow.
彼がプロジェクトの音頭を取って、みんなをまとめた。
He took the lead on the project and brought everyone together.
乾杯の音
Please lead the toast.
expression, godan verb (-ru)
sing the lead part of a song; lead a chorus
Specifically refers to singing the opening or main melody of a song, after which others join in. Common in traditional group singing or folk songs.
彼が民謡の音頭を取ると、みんながそれに合わせて歌い始めた。
When he sang the lead part of the folk song, everyone started singing along.