Source type: Sheet music cover 1920. Jazz, along with swing and blues, became the music of the 1920's. Famous jazz musicians included Louis Armstrong, Mamie Smith and Jimmie Rodgers. Jazz encouraged energetic Dancing. It was viewed as a more daring sound, different from what people were used. Dancing to jazz required a lot of partner movements. Jazz was part of the reason why the 20's were roaring, it brought about excitement for the up coming decade.