noun
choir leader
Refers to the person who leads or directs a choir, typically in a school or community setting.
彼女は合唱隊長として、コンクールで指揮をとった。
As the choir leader, she conducted at the competition.
Compound of 合唱 (がっしょう, 'chorus') + 隊長 (たいちょう, 'leader' or 'captain').