Mapman
Your examples are not Jazz in its strict sense and what are "fine and more accessible elements" of Jazz? To me, Jazz is essentially "black music" and for sociological reasons alone, think of Mingus, Parker, Miles, it is not necessarily intended to sound "fine" but rather "dirty" and is essentially, when it comes down to the nitty-gritty, a musical answer to the social ostracism suffered by the Afro-American community in the heyday of Jazz. Black musicians will tell you, that later this music was "stolen" from them by and became mainstream. Just to add to what Cwlondon said above.
Your examples are not Jazz in its strict sense and what are "fine and more accessible elements" of Jazz? To me, Jazz is essentially "black music" and for sociological reasons alone, think of Mingus, Parker, Miles, it is not necessarily intended to sound "fine" but rather "dirty" and is essentially, when it comes down to the nitty-gritty, a musical answer to the social ostracism suffered by the Afro-American community in the heyday of Jazz. Black musicians will tell you, that later this music was "stolen" from them by and became mainstream. Just to add to what Cwlondon said above.