I’m pretty mellow when it comes to what I consider acceptable fidelity in a live context. I figure it’s all real. Just different versions of real. Even when everything is electrified or sound-reinforced.
By the same token, though, some of the best sound I’ve ever heard came from listening to and playing acoustic guitar(s) and other acoustic instruments in the tiny upscale guitar room at McCabe’s Guitar Shop in Santa Monica CA. There’s also the sound I’d hear while playing with my buddies in my or their living rooms. The sound of pianos played at the piano store or the stringed instruments being played at the violin store. The Romani violin & accordion I heard at a joint in Budapest. Or was it somewhere in the Czech Republic?