Interesting interplay between the ethnographic and analytical approaches.
I see the motivation for looking at the tradition with an ethnographic lens but I'm not sure it's the most productive for producing workable definitions, since (almost?) by definition ethnographic differences originate in such minutiae of luck and squirrelly personal preference.
Examining individual dimensions of how liveness is achieved feels super productive though, in that they can be considered independently from the communities they originate in. This feels like a more FoC approach than splitting by social group — we're trying to bridge these communities and take the useful from each.