Spread Your Wings: Which concert is this version from?

I found an improvised version of Spread Your Wings in an old pirate CD I have named Queen - Live Rarities. I suppose that it's an intro for the entire song (the track is cut). Does anybody know from which concert is this from?

Nishinomiya 1982 from the first pressing of Get Down LP

Thanks for the answer!! I'll search for it.

interesting!