Tireguy: I have rarely experienced what you describe with music playback and then only with the human voice. Live I have gotten it from odd beats (such as good fifths played on the drums), voice of course and on rare occasions from combinations of instrumental notes and textures. You are very lucky if it is a regular occurrence with your system, plus it's legal.
Perfection?
I don't know about others here, but when I am listening to a favorite piece of music the hairs on the back of my neck stand up when everything is right. To me when this happens I realize what a good investment I have made, and can think of little else I would like to be doing(if you know what I mean). Does any one else feel this way or should I take evrybodies advice and find a shrink?