Final answer:
Count Basie was a leading figure in the jazz style, particularly during the swing era, with jazz being characterized by its rhythmic drive, improvisation, and roots in African American musical traditions. Harlem was a central hub for jazz in the 1920s, with venues like the Savoy Ballroom hosting notable musicians and bands.
Step-by-step explanation:
Count Basie was a proponent for the jazz style of music, particularly known for his role in the development of the swing era. This style of music is associated with a steady yet buoyant rhythm, bold and innovative harmonies, and the arrangement of music that allowed for improvisational solo performances.
During the 1920s, Harlem was considered the epicenter of jazz, with legendary venues like the Savoy Ballroom and the Apollo Theater hosting some of the finest performances. The jazz style of this era was characterized by the fusion of various regional influences, with a notable feature being the interplay between the ensemble and the soloists, often supported by intricate brass sections and rhythmic piano playing—as typified by Count Basie and his orchestra.