This is the 356th most frequent Japanese word.
公演
Public performance.
In this sentence, 公演 (kouen) refers to a stage performance or presentation by a theater group.
昨日新しい劇団の公演を見に行きました。
Yesterday, I went to see the performance of a new theater group.
Here, 公演 (kouen) signifies a scheduled event where a theatrical or musical performance is held.
彼女は来月の公演で主役を務めます。
She will play the lead role in next month's performance.
In this usage, 公演 (kouen) is used to describe a live performance by a musical band during a tour.