It has been raised in every period of jazz as new kinds come to exchange old ones. It comes from a myopic view of the music, a need to cling to the past, and a misunderstanding of how music and art change over time.
A precursor to what we acknowledge as jazz is the WWI military band of James Reese Europe. The Storyville area of New Orleans (Mahogany Hall) employed many musicians (it was closed by the Navy in 1917). Arguably, the modern jazz scene is as vibrant, if not more so, than in any other period of American historical past. This crossover jazz, rooted in the younger music of today and tied together by way of improvisation, presents the chance to make jazz popular once more. Nonetheless, Mr. Escoffery believes jazz does not need to explicitly reference the blues and swing to be jazz.