"It's in Everyone of Us" from it was shared here, but is the rest in the possession of anyone aside from Queen productions? Was it acquired somehow shortly after performance or leaked from archive many years later? Or it was played during one of Queen conventions by Greg Brooks? That could be one of good explanations why there is only one track available then.
Made a search on queenzone about this matter and found nothing related. Queenconcerts give an ambigious comment on this: "Excellent soundboard recording of the intro and first song sung by Freddie. The rest is still very rare..." . Searching queenconcerts forum also doesn't give any result.
The perfect recording of the very last Fred's live singing and no info available about it. Pitful queenlive.ca doesn't cover solo performances, or at least the part of them which happened before Fred's death. I'm sure there would be no need to ask such question then ;)