I don't mean to sound like I am splitting hairs, but please define what you mean by "New Orleans jazz". You can find virtually every type of music -- not just jazz -- in N.O., so you need to be more specific in your request.
I assume that by "N.O. jazz", you mean traditional jazz of the type that developed in N.O., sometimes called "Dixieland". If that is NOT what you are asking about, please define what kind of music you mean.
I assume that by "N.O. jazz", you mean traditional jazz of the type that developed in N.O., sometimes called "Dixieland". If that is NOT what you are asking about, please define what kind of music you mean.