When most people today hear the word "SWING" as to pertaining a style of music, the decade of the 1940's come to mind. But if you're a true blue educated musician like I, you probably know it infiltrated Jazz allot earlier than 1947. Like about 21 years before.†
In 1926, Louis Armstrong & His Hot Five were an over night sensation with their hit "HEEBIE JEEBIES" which for it's time was a slight departure from the typical† ragtime style of jazz. It seemed to have more of a jump to the beat and the rhythm seemed to have a bit of a swing to it, like an off beat, some would say at that time. Swing became the hook of more and more up and coming jazz acts because it made you tap your feet if you were casually listening to it. Armstrong was the Grand Daddy of Swing. He was the mentor and he was the "KING OF SWING". Others would soon follow the "Swing Thing"
The Music of Louis Armstrong
Heebie Jeebies - 1926
The Music of Duke Ellington
The Music of Earl Hines
The Music of Henry Allen
By the mid to late 30's, Swing began to enter the mainstream through movies and pop hits like: AFRAID TO DREAM - Benny Goodman (1936)
In 1939, a fresh style of Swing entered the air. It would have a heavy blusey riff with an aggressive jump style rhythm. Thanks to Goodman's "SING, SING, SING",(1938) written by none other than Louis Prima, we now reached a higher level. Count Basie would just call it "BOOGIE WOOGIE" in 1940.This style of swing would pave the way for Jump Blues and Rhythm & Blues. It would also prepare the world for the phenomena of "ROCK'N'ROLL"(but that ain't 'til later)
As SWING dominated pop music during World War II, Jazz took a detour down the road called BEE BOP. Based out of Kansas City, Bee Bop would become "musician's Jazz". Dizzie Gillespie and Charlie Parker would hold major influences for future Jazz musicians leading to the "Modern" Jazz sounds like "Free Style" and "Fusion" later on in the 60's and 70's.
Dizzy Gillespie Charlie Parker