Every genre of music seems to have its own aethetic. Irish session musi, f'rinstance, eschews harmony an counterpoint---which makes it agonizingly dull to my ears. Classically trained singers frequently try folk or pop songs---think of Peter Pears singing Benjamin Britten's settings of English folk songs or Dyer-Bennett singing "John Henry" (or, for tht matter, Springsteen crooning "We Shall Overcome".
Contrariwise, someone with a classical or operatic background who's unfsmiliar with field recordings is apt to recoil in horror at the the likes of Almeda Riddle or Sam Larner.
    To appreeciate any style of music, you have to "buy in" to its aesthetic.