Is there such a thing as "quite right" when talking about an essentially folk idiom? To hang onto the blues example, I wonder whether some oldtime quiet Piedmont picker would necessarily think Howlin' Wolf (or Screamin' Jay) "got it quite right?" Other examples abound. Reiterate: what's "quite right?" What about jazz? ("Which jazz?" is of course the only usable response - Dixieland? Django & Stephane? Paul Whiteman, Bix Beiderbecke, Benny Goodman? Chet Baker? Is jazz somehow an exception?)

By introducing that concept ("quite right") you're accepting and reinforcing the "race memory" notion, but doing so within an example that disproves the concept in & of itself.