Jazz has been known since the early 20’s and during those years there were jazz legendary musicians which remain as the best jazz musicians up to now. Named Louis Armstrong, Duke Ellington, Paul Whiteman and Jelly Roll Morton.
Regardless of the huge numbers of middle and upper class people—mostly white—who were music enthusiasts, it is often argued the 1920's Jazz music has intensified the racial tension during the post war years. This is due to great success of these African American musicians who were popular as African American jazz musicians. During the time of intense segregation they mostly expressed of racial hatred. Those African American musicians recorded and marketed ‘racial hatred music’ towards the African American population. Amazingly those records made very huge amounts of money considering the time period. Nonetheless, jazz during those years was expressive and improvisational.



