noun
choral competition; choir contest
A competition where choirs perform and are judged, common in Japanese school music programs.
来月、学校で合唱コンクールがあります。
There will be a choral competition at school next month.
合唱コンクールで金賞を取るために、毎日練習しています。
We practice every day to win the gold prize at the choral competition.