I first bought this in 1980, then bought it on CD in the late 80's, then didn't have a copy for around 10 years. I bought it again a few months ago, and just HAD to crank up the volume and just listen.
Too often concept albums are individual tracks forced together and it doesn't work that well, but the track 2112 is a masterpiece of thematic writing. There are essentially 3 themes (and variations on these themes) that are used throughout to tremendous effect, and a storyline that sounds like it should be the storyline from a Phillip K Dick novel. This is the middle ground between the early 70's rock and the late 70's arty rock that Rush produced, and they have rarely done better!
The other tracks here are pretty damn good too - 'Passage to Bangkok' is basically a journey through the world's dope capitals, 'Something for Nothing' is a concert favourite, and then...the ballad! How on earth did 'Tears' get on an album like this? It's got keyboard strings and no distorted guitar at all, but it really fits in well. In fact, it's a very beautiful song.
You know, I think I'm going to have to go and play it again...