Lyric discussion by third_to_the_left 

Cover art for Nellie Takes Her Bow lyrics by Electric Light Orchestra

I'm surprised no one has commented on this song. It's a beautiful, haunting piece of music with a very unique vocal style. I believe it's about a actress (or actor?) named Nellie, and how "there's a different world backstage." It's sung from the point of someone who works backstage in auditorium.

I could easily be entirely wrong though.