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
Original Dixieland Jass Band of the Original Dixieland Jazz Band", was published. Writer H. O. Brunn based it on Nick LaRocca's recollections, which sometimes differ from that of other sources. ODJB was the first band to record jazz successfully, establishing and creating jazz as a new musical idiom and genre of music. Bix Beiderbecke was influenced by the ODJB to become a jazz musician and was heavily influenced by Nick LaRocca's cornet and trumpet style. Louis Armstrong acknowledged the importance of ODJB: In 1917, the band made the first appearance of a jazz band in a motion picture, a silent movie entitled, "The Good