I love reading these posts.
I cannot recall the exact time frame, let's say 1993 when I was a junior in high school. I was really in to MTV fare for much of the late 80s, and in the early 90s coming out of junior high I was getting in to classic rock (Floyd, the Beatles) and one of my friends lent me his copy of 2112. What the hell, a 20 minute long song? I'd never heard of such a thing. Hey Jude was epic by my standards. I started it up, and there was this massive instrumental section before the vocals even start that was better than 99% of the songs I was listening to at the time. And wait... what are these lyrics about? Are they telling some story? This was the most mind blowing thing I'd ever heard. I'd never heard vocals like that, or guitar like that, or drums, or lyrics. That was one of the 2 landmark songs that has guided my musical journey and the one that best fits the thread topic.