also: ブラス・バンド
noun
Refers to a musical ensemble consisting primarily of brass instruments and percussion, common in schools and local festivals.
運動会でブラスバンドが演奏した。
The brass band performed at the sports day.
吹奏楽 is the broader Japanese term for wind band music, while ブラスバンド specifically implies a brass band with a strong brass and percussion focus.
Loanword from English 'brass band'.