the genre were by the Original Dixieland Jass Band from 1917. The 1920s saw trumpet and cornet leaders like Louis Armstrong and Joe "King" Oliver, playing with the trumpet proclaiming the melody and harmonies and countermelodies coming from the clarinet or trombone. The rhythm section typically included a tuba or bass, piano, banjo or drums. During this period, ensembles were standard, in contrast to many of the later developments in jazz. By the 1930s, however, newer forms of pop-jazz like swing music and Dixieland had overtaken authentic New Orleans-style jazz among mainstream audiences. Dixieland jazz is a form of jazz which arose in the 1920s in Chicago. Musicians there were trying to revive authentic, classic New Orleans jazz. By the 1940s, Dixieland revival musicians like Jimmy McPartland, Eddie Condon and Bud Freeman had become well-known and established their own unique style. Most characteristically, players entered solos against riffing by other horns, and were followed by a closing with the drummer playing a four-bar tag that was then answered by the rest of the band. In 1917, the Original Dixieland Jazz Band released "Livery Stable Blues", which is often said to be the first jazz recording. The genre had certainly existed before 1917, however, but recording opportunities were bleak. Buddy Bolden, a cornetist from New Orleans, never recorded his influential take on jazz. The early 1920s saw recordings from Kid Ory, King Oliver, Sidney Bechet, Jelly Roll Morton and Bessie Smith. King Oliver included a young cornetist named Louis Armstrong on his records as the second cornet. Armstrong soon moved to Chicago, worked with Fletcher Henderson, Bessie Smith and Clarence Williams and eventually began working as a band leader in 1925, his work setting the stage for the development of swing and the jazz variations to come after. Jazz had just reached its first peak of mainstream popularity in 1924, with the recordings of Paul Whiteman. Alongside the Great Depression, many musicians from poor, rural Southern states like Louisiana moved to the north, especially New York City and Chicago, Louis Armstrong was among them, and he helped make Chicago the center for musical innovation in the country before moving on to New York, where clubs like Cotton Club, Village Vanguard and Minton's were flourishing. The mid-1930s were the peak of big band swing, with artists like Charlie Barnet, Chick Webb and Benny Goodman rising to the ranks of esteemed-band leaders. Soloists