Swing Swing Swing is the jazz style that emerged during the early 1930s and emphasized big bands. It spilled into the late 1940s and then remained popular in recordings, film, and television music long after its main proponents had disbanded. Most swing-style groups had at least 10 musicians and featured at least three or four saxophones, two or three trumpets, two or three trombones, piano, guitar, bass violin, and drums. Guitarists, bassists and drummers offered repeating rhythms that were sufficiently simple, buoyant, and lilting to inspire social dancers, the style's largest audience.
Musicians strove for large, rich tone qualities on their instruments.
Solo improvisers did not seek intricacy in their lines so much as lyricism and a hot, confident feeling that was rhythmically compelling. For these reasons, the musical period of the 1930s and 1940s has been called the swing era and big-band era. Not all dance music played by big bands of the 1930s and 1940s was jazz. A large segment of the public, however considered almost any lively, syncopated popular music to be jazz. Journalists and jazz fans drew distinctions between bands that conveyed the most hard-driving rhythmic qualities and extensive solo improvisations and those that conveyed less swing feeling and improvisation.