Hendrux fan
You might be right, I could be wrong
But I base my statement, on an interview I saw with George Martin
According to him, rain was first. And that tiny section at the end, was the first time he knew, that that, had been done. And I believe he also went on to say, that there would have been, no tommorow never knows, if it had not been, for those few seconds of rain
The interview was something to do with the anniversary if apple studios, I believe
Anyway, its high on impossible to choose a favourite Beatles song
But seen as my dad, had tons of outtakes, way before many were released, and still haven't been
Including all of bobs basement tapes, yes, I know they've released more now, but they still ain't releases them all I believe
Then I will be forced to pick, the session track of strawberry fields, which is just John and acoustic guitar
I believe that's available now, hope it counts

I know the subject was covered in the brilliant 10 part PBS TV series Sound Breaking. Sir George's son Giles breaks TMK down along w/ insights from Tom Petty and super producer Rick Rubin .
P. S. John played rhythm and George played lead guitars
I also think Paul played more instruments .Keys ,drums,bass,6 string
ALL the instruments on his first solo album.