Education is an interesting thing. I mean, if you really want to assess your system's sound reproduction, what you probably should do is spend some real time listening to live music, to find just what it is you like about live music. Listen to a lot of examples of live music, from your kid's grade school orchestra to local acts playing at a local bar to a symphony.
About the only thing I'd discourage you from listening to is arena rock bands at the local sports-plex (I've yet to hear any band sound good at the Palace of Auburn Hills, for instance).
I mean, if you want a system that sounds good, it's probably a good idea to listen to a lot of live music just to get a feel for what it is you like about sitting in a great spot listening to someone play. I mean, how should that sound of that cymbal really sound as it fades? Does the triangle really make you jump like that? What about that cool, visceral feel of a bass drum whoomp? The slight buzz of a clarinetist's reed or the faint hiss of spit in a trumpet or trombone? The lips and tongue of the singer forming the syllables? All the details we claim to like to hear in music, have you listened to it for real?
Then, once you know what you like, you can listen for it in your recordings. One of the things I realized was just how much a difference SACD and DVD-A make.