<P> Jelly Roll Morton recorded with the New Orleans Rhythm Kings in an early mixed - race collaboration, then in 1926 formed his Red Hot Peppers . There was a larger market for jazzy dance music played by white orchestras, such as Jean Goldkette's orchestra and Paul Whiteman's orchestra . In 1924 Whiteman commissioned Gershwin's Rhapsody in Blue, which was premiered by Whiteman's Orchestra . By the mid-1920s, Whiteman was the most popular bandleader in the U.S. His success was based on a "rhetoric of domestication" according to which he had elevated and rendered valuable a previously inchoate kind of music . Other influential large ensembles included Fletcher Henderson's band, Duke Ellington's band (which opened an influential residency at the Cotton Club in 1927) in New York, and Earl Hines' Band in Chicago (who opened in The Grand Terrace Cafe there in 1928). All significantly influenced the development of big band - style swing jazz . By 1930, the New Orleans - style ensemble was a relic, and jazz belonged to the world . </P> <P> Some famous black artists of the time were Ella Fitzgerald, Louis Armstrong, Duke Ellington, and Count Basie . Several musicians grew up in musical families, where a family member would often teach how to read and play music . Some musicians, like Pops Foster, learned on homemade instruments . Urban radio stations played African - American jazz more frequently than suburban stations, due to the concentration of African Americans in urban areas such as New York and Chicago . Younger demographics popularized the black - originated dances such as the Charleston as part of the immense cultural shift the popularity of jazz music generated . The migration of African Americans from the American south introduced the culture born out of a repressive, unfair society to the American north where navigating through a society with little ability to change played a vital role in the birth of jazz . </P> <P> The rapid national spread of jazz was enabled by the introduction of large - scale radio broadcasts in 1932 . The radio was described as the "sound factory ." Radio made it possible for millions to hear for free the music--especially people who never attended expensive, distant big city clubs . These broadcasts originated from clubs in leading centers such as New York, Chicago, Kansas City, and Los Angeles . There were two categories of live music on the radio: concert music and big band dance music . The concert music was known as "potter palm" and was concert music by amateurs, usually volunteers . </P> <P> The next type of music is known as big band dance music . This type is played by professionals and was featured from nightclubs, dance halls, and ballrooms . Musicologist Charles Hamm described three types of jazz music at the time: black music for black audiences, black music for white audiences, and white music for white audiences . Jazz artists like Louis Armstrong originally received very little airtime because most stations preferred to play the music of white American jazz singers . Other jazz vocalists include Bessie Smith and Florence Mills . In urban areas such as Chicago and New York, African - American jazz was played on the radio more often than in the suburbs . Big - band jazz, like that of James Reese Europe and Fletcher Henderson in New York, attracted large radio audiences . </P>

What is the significance of the jazz age