Jazz is music created by blacks released from American slavery in the early 1900s. It features a pleasant 4-beat groove and brass entanglement.

It is said that jazz was born shortly after the Civil War. Buying cheap instruments that were no longer needed by the army, the liberated blacks began playing blues and spiritual instead of singing. The black guys who knew the instruments knew they would make good money playing at the tavern in the Story Building in New Orleans.

The opening of World War I and New Orleans became a naval port, the prostitute was closed (1917), and the band-man who lost his job moved to Chicago throbbingly.

In Chicago, countless white jazz bands that imitated blacks were born, and as the Chicago style grew, jazz spread from southern blacks to all Americans. Chicago’s young Caucasian representative, Bix Beiderbecke, ushered in the height of Dixie style, but with the advent of Benny Goodman, jazz has undergone a major transformation, entering the so-called swing era of the 1930s.

Benny Goodman, Tommy Dorsey, and Harry James are three representatives of this era. Their performance was greeted by a fuss.

The outbreak of rag lime has signaled the beginning of the 20th century, paving the way for the heyday of jazz with a focus on World War I. And the golden age of swings came in the ’30s.