"Dixieland" was a ubiquitous club music popular during the 50's and 60's--Pete Fountain/Al Hirt sort of music, derived from and imitative of older forms of jazz, but with overriding ideosyncratic elements of it's own--

While brilliant musicians like Lenny Tristano and John Coltrane poured out their hearts and souls, in small, dark, bars, the great unwashed flocked to hear clarinets and trombones slithering inexorably through everything from "When the Saints Go Marching In" to "Mame" at places like "Shakey's Pizza"--