A jazz band is a musical group that plays jazz, a genre known for its improvisation and unique rhythms. Jazz bands can vary in size, from small combos with just a few musicians to larger big bands featuring many instruments. Common instruments include the saxophone, trumpet, trombone, piano, double bass, and drums. Jazz bands often perform in various settings, such as clubs, festivals, and concerts. They may play a mix of original compositions and classic jazz standards. The musicians in a jazz band typically take turns improvising solos, showcasing their individual creativity while contributing to the overall sound of the group.