Dixieland Louis Armstrong. They came to be grouped as Dixieland standards beginning in the 1950s. Largely occurring at the same time as the "New Orleans Traditional" revival movement in the United States, traditional jazz music made a comeback in the Low Countries. However, most Dutch jazz bands (such as ) had long since evolved into the Swing-era while the few remaining traditional jazz bands (such as the Dutch Swing College Band) did not partake in the broader traditional revival movement, and continued to play ragtime and early jazz, greatly limiting the number of bands aspiring jazz musicians could join or (as
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