I like that. Must have taken a lot of work. I'm intrigued, though, where did the "I see a little silhouetto of a man" line come from? It sounded live, but I thought they always used the tape for that part.
It's from the Boston '76 gig. It is definitely live. The show kicked off with A short introduction speech (I think by Kenny Everett), and then went straight into the opera section, with Freddie evidently singing that first line live, seems a little bit pointless to me.