And that was where things rested until last weekend at Chambanacon, when Bill Rintz and Bill Furry pulled out a song at their concert.
It was almost, but not quite the song that Anne had reconstructed. It was clearly the song that Anne had heard. All of the bones matched.
And so, as it turned out, did the feathers. Because this song was on The Byrds 1968 album, The Notorious Byrd Brothers, and titled "Space Odyssey".
So now we know where the song came from.
If you'd like to hear the original, click here.