Jazz leader of New Orleans' Camelia Brass Band, D'Jalma Ganier, taught Louis Armstrong to play trumpet; Armstrong would then popularize the New Orleans style of trumpet playing, and then expand it. Like Jelly Roll Morton, Armstrong is also credited with the abandonment of ragtime's stiffness in favor of swung notes. Armstrong, perhaps more than any other musician, codified the rhythmic technique of swing in jazz and broadened the jazz solo vocabulary. The Original Dixieland Jass Band made the music's first recordings early in 1917, and their "Livery Stable Blues" became the earliest released jazz record. That year, numerous other bands made
Jazz, Ltd. musicians at a time when they needed one. Bill and Ruth Reinhardt estimated that over 700 musicians played at Jazz Ltd. Some were pioneers of Dixieland jazz. By hiring the best jazz musicians in the country, forbidding singing and dancing (which incurred a 20% war excise tax that put many jazz bands out of business), refusing business with the mob and playing only Dixieland jazz music, Jazz, Ltd became one of the longest-running jazz clubs in the country. Sidney Bechet, Baby Dodds, Edmond Hall, George Brunies, Jack Teagarden, Muggsy Spanier, Clancy Hayes, Les Beigel, Lil Armstrong, Art Hodes, Don Ewell,