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
Dixieland back onto the jazz circuit after years of not playing (e.g., Kid Ory and Red Nichols). Many Dixieland groups of the revival era consciously imitated the recordings and bands of decades earlier. Other musicians continued to create innovative performances and new tunes. For example, in the 1950s a style called "Progressive Dixieland" sought to blend polyphonic improvisation with bebop-style rhythm. Spike Jones & His New Band and Steve Lacy played with such bands. This style is sometimes called "Dixie-bop". Lacy went on to apply that approach to the music of Thelonious Monk, Charles Mingus, Duke Ellington, and Herbie Nichols. While