When listening to live music, I’m only focused on sonics if they are distractingly poor -- such as painfully loud or bright. Where I want my focus to be is on emotional engagement, with my left brain, like my cell phone, switched off !
I can't imagine listening to live music as if listening to a home system-- checking for soundstage depth, resolution, etc. OK, if you're the sound guy at the the venue it makes sense but as an audience member, why pollute the listening experience by bringing along the analytical function? Lock him in the car and leave him behind in the parking lot. After the show, you can always let back him out.