Beatles songs, Don't Let Me Down

JOHN 1969: (to Ringo, regarding the cymbal smash in the intro) 'Give me a big 'kzzzsshhhh!' Give me the courage to come screaming in.'

JOHN 1980: 'That's me, singing about Yoko.'

PAUL circa-1994: 'It was a very tense period.
John was with Yoko, and had escalated to heroin and all the accompanying paranoias and he was putting himself out on a limb.
I think that, as much as it excited and amused him, at the same time it secretly terrified him.
So 'Don't Let Me Down' was a genuine plea, 'Don't let me down, please, whatever you do.
I'm out on this limb…' It was saying to Yoko, 'I'm really stepping out of line on this one.
I'm really letting my vulnerability be seen, so you must not let me down.' I think it was a genuine cry for help.
It was a good song.
We recorded it in the basement of Apple for 'Let It Be' and later did it up on the roof for the film.
We went through it quite alot for this one.
I sang harmony on it, which makes me wonder if I helped with a couple of the words, but I don't think so.
It was John's song.'