Original Dixieland Jass Band itself as the Creators of Jazz. It was the first band to record jazz commercially and to have hit recordings in the genre. Band leader and cornetist Nick LaRocca argued that ODJB deserved recognition as the first band to record jazz commercially and the first band to establish jazz as a musical idiom or genre. In early 1916 a promoter from Chicago approached clarinetist Alcide Nunez and drummer Johnny Stein about bringing a New Orleans-style band to Chicago, where the similar Brown's Band From Dixieland, led by trombonist Tom Brown, was enjoying success. They then assembled trombonist Eddie Edwards, pianist
1940s in jazz leading ensemble. Through the 1950s and 1960s, Dixieland was one of the most commercially popular jazz styles in the US, Europe, and Japan, although critics paid little attention to it. By the end of the 1940s, the nervous energy and tension of bebop was replaced with a tendency towards calm and smoothness, with the sounds of cool jazz, which favoured long, linear melodic lines. It emerged in New York City, as a result of the mixture of the styles of predominantly white jazz musicians and black bebop musicians, and it dominated jazz in the first half of the 1950s. The