Wow, that ''thing'' sure is creepy. I don't know anything about synthesizers but I've read that the organ doesn't really have a melody, and in this video the organ does have a kind of melody that's repeated over and over, doesn't it?
Joe said
I have a feeling it's already been heard several times without anyone realising. I bet McCartney's not averse to playing it before shows, at art exhibitions etc. He's spoken in the past of wanting to do so.
So, if anyone is going to see Paul at some kind of show, you know what to do!