came across this on youtube
The following post accompanied the clip:
"I have in my possession what I believe to be an original and unreleased reel-to-reel recording of what sounds like Ol' Blue Eyes himself.
I got the recording in a box of old recording equipment and tapes that were sold on auction from a storage facility in Hollywood two years ago. The reel-to-reel tape is titled "A7May66Reprise", and no other information came with it. I have digitized a sample of the recording and uploaded it for you to listen to. I think there may be other recordings on the tape but due to my time limitations, I haven't checked.
I am asking $19,500 (o.b.o.) for this obviously rare reel recording: