Jazz style popular in the 1930s–40s, a big-band dance music with a simple harmonic base of varying tempo from the rhythm section (percussion, guitar, piano), harmonic brass and woodwind sections (sometimes strings), and superimposed solo melodic line from, for example, trumpet, clarinet, or saxophone. Exponents included Benny Goodman, Duke Ellington, and Glenn Miller, who introduced jazz to a mass white audience.