As a big prog-rock fan, I have always found the Alan Parsons Project laid-back and relaxing, so that's who I thought of for this theme. I've always liked this song even though it doesn't make a lot of sense on the surface. Apparently Eric Woolfson (singer, lyricist, pianist/synth player on this one) toured an English chemical factory and observed a landscape of pipes and tanks, and no people around, with a street sign reading Ammonia Avenue, indicating what was produced in that part of the complex. How that became a central motif in a song whose lyrics otherwise seem to be about faith, hope, and belief in a better world to come, I have no idea...