noun, noun or participle which takes 'suru', transitive verb
ensemble playing; ensemble performance; concert
A music term for multiple performers or instruments playing together; as 合奏する it means to perform a piece together. The English gloss 'concert' is best understood as an ensemble performance rather than any concert in general.
生徒たちは音楽室で合奏の練習をした。
The students practiced ensemble playing in the music room.
クラス全員で「ふるさと」を合奏した。
The whole class played “Furusato” together.
バイオリンとピアノの合奏を聴いた。
I listened to an ensemble performance by violin and piano.