a conductor leading a marine or military style band from a pre-1920s music program. From the Library of Congress 樂隊和指揮 band、Circle Icons、conductor、externalsource、leader、loc、music、musicians 帶、圓圈圖標、導體、外部源、領導、地方、音樂、音樂家 資料來源:openclipart ( https://openclipart.org/ )