Big Band is a style of music that became popular in the 1930s and 1940s, characterized by large ensembles typically consisting of brass, woodwinds, and rhythm sections. These bands often featured around 10 to 25 musicians and played lively, energetic tunes that were perfect for dancing. Famous Big Band leaders like Duke Ellington and Count Basie created memorable songs that are still celebrated today. The music of Big Band is known for its rich harmonies and intricate arrangements, often incorporating improvisation. Swing, a subgenre of jazz, is a key element of Big Band music, making it a favorite during the swing era. Many people still enjoy listening to Big Band music at dance halls and jazz festivals.