big band
US /ˈbɪɡ ˌbænd/
UK /ˈbɪɡ ˌbænd/

1.
big band
a large dance band, especially of the 1930s and 1940s, that plays swing music and has a rhythm section, a brass section, and a reed section
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The jazz club featured a classic big band on Saturday nights.
Le club de jazz présentait un big band classique les samedis soirs.
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Many famous musicians started their careers playing in big bands.
De nombreux musiciens célèbres ont commencé leur carrière en jouant dans des big bands.