I can think of two right off the bat - "You're Looking At Me" & "Can't Help It", both superb songs all but lost to modern song-consciousness (although, hell, what with all the "singer" thing of the last 10-15 years that I've gone out of my way to ignore, maybe they've become standards by now...). And yeah, I still think that song-form is not particularly a relevant creative arena going forth, but otoh, a good song is fun just because, and in that sense, yeah, hey, that's certainly relevant. So, let's hear it for the fun of a good song and carry that with us no matter where else we may or may not go.
Anyway, that's the criteria for this thread - great songs recorded by Nat that haven't taken on a life/legend of their own.
And now....