Dixieland all of the recorded repertoire of New Orleans musicians was from the period when the format was already evolving beyond the traditional New Orleans format. "Dixieland" may in that sense be regarded as denoting the jazz revival movement of the late 1930s to the 1950s as much as any particular subgenre of jazz. The essential elements that were accepted as within the style were the traditional front lines consisting of trumpets, trombones, and clarinets, and ensemble improvisation over a 2-beat rhythm. The Dixieland revival renewed the audience for musicians who had continued to play in traditional jazz styles and revived
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,