This is the 7509th most frequent Japanese word.
全曲
"全曲" (zenkyoku) means "all songs" or "the entire piece."
In this sentence, "全曲" is used to describe that every song from the album was listened to without exception.
私はそのアルバムを全曲聴きました。
I listened to all the songs in that album.
Here, "全曲" indicates that the band will perform every song, possibly from a specific collection or album, in their concert.
コンサートでバンドが全曲演奏する予定です。
The band plans to perform all the songs during the concert.
"全曲" in this context is used to broadly reference a collection of songs being praised as amazing in a review.