Yes to all of those live music performances and yes to being able to follow one instrument among all the other instruments and also identify its position on the stage, unless the performance is non-acoustic and amplified badly.What on earth does that mean? These are hifi nonsense terms. Have you ever sat within ten metres of Steinway, or a string quartet, or an orchestra, or a rock band, or a jazz group and heard “air” or “sound staging”?. Real music, real musicians, sound solid, real, enormous, they make your soul shake, they arouse you, they make you feel more. You don’t buy ATCs for “air”, you buy them for musical credibility, for a visceral connectedness to the music that transports you. If you don’t feel that, sell them, they are wasted on you. Buy some stupid hifi rubbish, spend lots of money on cables, and listen to “air”.
Where I live I am fortunate to be able to attend live music of all genres, by both local and internationally renound musicians (sometimes they're both!). There's not a week that goes by when I have not attended a live music event of some sort. That reminds me that it's the Cheltenham Jazz Festival soon...