Swing vs Jazz
Although some disagree, swing music is basically a type of jazz. It grew and took its shape in Harlem dance halls but could be heard, and seen through swing dancing, just about everywhere by 1936.
Originally played by musicians such as Louis Armstrong, Duke Ellington, and other black jazz icons, swing music reached new, white audiences when musicians like Benny Goodman began playing swing in ballrooms and theaters in major cities in the 1930s. (i.e., The Paramount in New York or the Palomar in Los Angeles)
Jazz is an American music form with a long history. It’s believed to have its roots in the improvisation of music played by slaves on handmade instruments like the banjo or washboard. The rhythm and lyrics of spirituals are also part of jazz's foundation. Slave music had elements of African musical traditions, American folk music, and European music.
Jazz came into existence during the Jim Crow era when segregation caused black and mixed or Creole populations to come together, both geographically and culturally. Music styles blended and jazz was born. Black migration, common during Jim Crow days, meant the migration of jazz too.