Prohibition of alcohol helped Jazz grow because it was often played in speakeasies and at many 1920s parties, it also derives from slavery when slaves sang the blues. This later evolved into the jazz genre or dixieland one genre was called I believe, some iconic Jazz artists include Louis Armstrong and Billie Holiday who was a blues singer
Tony Williams joined Miles Davis at the remarkably young age of 17, in 1963. He left right after recording In A Silent Way to concentrate on power-trio Lifetime with John McLaughlin and organist Larry Young