Dixieland music is a style of jazz. Dixieland developed in New Orleans at the start of the 20th century, and spread to Chicago and New York City by New Orleans bands in the 1910s, and was, for a period, quite popular among the general public. It is often considered the first true type of jazz, and was the first music referred to by the term jazz (before 1917 often spelled jass).
The style combined earlier brass band marches, French Quadrilles, ragtime and blues with collective, polyphonicimprovisation. While instrumentation and size of bands can be very flexible, the "standard" band consists of a "front line" of trumpet (or cornet), trombone, and clarinet, with a "rhythm section" of at least two of the following instruments: guitar or banjo, string bass or tuba, piano, and drums.