I’m going to use a word I don’t even like: civilized. The containment of well-played jazz suggests a civilized interaction, one that can can be imagined as something other than a repressive protocol. This particular idea of civilized behavior derives from (and returns to) how the musicians treat each other, and how the music treats the audience. In this use, it’s not about reassuring those in power. “Civilized” is a term of mutual aid here.