<P> Thomas Edison's invention of the phonograph cylinder kicked off the birth of recorded music . The first cylinder to be released was "Semper Fidelis" by the U.S. Marine Band . At first, cylinders were released sparingly, but as their sales grew more profitable, distribution increased . These early recorded songs were a mix of vaudeville, barbershop quartets, marches, opera, novelty songs, and other popular tunes . Many popular standards, such as "The Good Old Summertime", "Shine On Harvest Moon", and "Over There" come from this time . There were also a few early hits in the field of jazz, beginning with the Original Dixieland Jazz Band's 1917 recordings, and followed by King Oliver's Creole Jazz Band, who played in a more authentic New Orleans jazz style . </P> <P> Blues had been around a long time before it became a part of the first explosion of recorded popular music in American history . This came in the 1920s, when classic female blues singers like Ma Rainey, Bessie Smith and Mamie Smith grew very popular; the first hit of this field was Mamie Smith's "Crazy Blues". These urban blues singers changed the idea of popular music from being simple songs that could be easily performed by anyone to works primarily associated with an individual singer . Performers like Sophie Tucker, known for "Some of These Days", became closely associated with their hits, making their individualized interpretations just as important as the song itself . </P> <P> At the same time, record companies like Paramount Records and OKeh Records launched the field of race music, which was mostly blues targeted at African American audiences . The most famous of these acts went on to inspire much of the later popular development of the blues and blues - derived genres, including Charley Patton, Lonnie Johnson and Robert Johnson . </P> <P> Jazz is a kind of music characterized by blue notes, syncopation, swing, call and response, polyrhythms, and improvisation . Though originally a kind of dance music, jazz has now been "long considered a kind of popular or vernacular music (and has also) become a sophisticated art form that has interacted in significant ways with the music of the concert hall". Jazz's development occurred at around the same time as modern ragtime, blues, gospel and country music, all of which can be seen as part of a continuum with no clear demarcation between them; jazz specifically was most closely related to ragtime, with which it could be distinguished by the use of more intricate rhythmic improvisation, often placing notes far from the implied beat . The earliest jazz bands adopted much of the vocabulary of the blues, including bent and blue notes and instrumental "growls" and smears . </P>

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