In Pauls book "Many Years From Now" McCartney says something along the lines of "I find it refreshing to know that out of all the songs John & I wrote we only disagree/differ on two!" But Johns remarks coincide with McCartneys remarks on more than 2 songs! McCartney says he did not check beforehand what John had said about who wrote what until after his interviews for the book. But Lennon claims quite a bit more than McCartney seems to think! Like the lyrics of "Eleanor Rigby", the middle eight of "And I Love Her" and melody of "In My Life" etc!
For example:
When I was in The Beatles I thought I didn't write melodies, that Paul wrote those and I just wrote straight, shouting rock 'n' roll. But, of course, when I think of some of my own songs -- "In My Life" -- or some of the early stuff -- "This Boy" -- I was writing melody with the best of them.
I wish I could find the interview where he goes through each ( or a hell of a lot of Beatles songs ) I can't find it in my copy of The Playboy interview. Maybe this is why McCartney thinks they only disagree on 2 songs as it must be in another interview. But Lennon did go through quite a few well known Beatles classics. That said McCartney claims credit on an awful lot of songs generally regarded as Lennon/Beatles works. Most notably "Lucy In The Sky With Diamonds"… McCartney claims this was co-written in his 1997 book yet only gives
"Newspaper taxis appear on the shore" as the only example of his offerings to a 'co-written' song! He claims half of "Norwegian Wood" and "The Benefit of Mr Kite" McCartney also claims that songs like "Girl" and "If I Fell" were very much co-written!
That said I think McCartney had more musical in-put on Lennons Beatle songs than Lennon had on McCartneys! For example the intro of Strawberry Fields – that's a key part of the song! The tape loops in "Tomorrow Never Knows" the melody of "In My Life" or the counter melody of "Help!" Very much so if his claim that "Norwegian Wood" was 50/50
