That always sounded like a too good to be true urban legend, but I think it was in one of the Beatle books that came out in the last few years. (That wouldn't make it true, of course.) Would love to hear more info on it if there were any truth to it though. I think Jack Douglas hinted at this, and it would make the most sense: the best chance for a Lennon/McCartney reunion would have been to write something for Ringo. That's the kind of thing that could have happened it the '80's. Sadly, we'll never know.
"Day Tripper" was written under intense deadline pressure. Hence, it might have been John's idea to lift the progression from "What'd I Say," as they needed one more song to have "Rubber Soul" in the shops by Christmas. "ERIC CLAPTON...has graciously consented to speak to you in several critical areas,"* @ 3:30 being the relevant one here:
...I guess George must've told him? As for "Come Together," @ 1:00 here: ...Lennon sings "here comes old flat top..." which sort of clued me in. I can hear Paul's bassline over the progression to this tune. Of course, this is all speculation. Part of the fun, you see--nobody told me. Strange days indeed. Uncle Albert/Admiral Halsey has a nice sad/happy melodic juxtaposition to it. Even without the lyrics. And of course, "Another Day" is insanely catchy, and "Daytime Nighttime Suffering" is all right that one... [size=7]* with apologies to Frank Zappa.
This song is a spritely more uptempo piano ballad, unlike that piano song featured at the end of the album "New"which I love for its deep feeling, sounds beautiful, is beautiful, with its line about a Bird