Bob Dylan ,Roger McGuinn of The Byrds and music   critic   William Mann of   The London Times   as early as 1963 and 1964 pointed out   that even in early Beatles    songs like She Loves You and   I   Want To Hold Your Hand   had unusual and   interesting chords and they arranged them.


And as early as late 1963   a   music critic Richard Buckle   in The London Times   called John and Paul the two   of   the most   briliant composers since Beethoven   after John and Paul composed the music   for   a ballet Mods and Rockers.

And John and Paul wrote one of The Rolling Stones first hits, I Wanna Be Your Man in   late 1963 right in front of them. And Keith Richards and Mick Jagger were impressed and said wow,how can you write a song just like that and it inspired them to start writing their own songs.


John Lennon and Paul McCartney were such amazingly talented singer song writers that they were already writing hit songs for other artists as early as 1963 when their own song writing success was getting off the ground,besides The Rolling Stones,they also wrote hit songs in 1963 for Billy J.Krammer and The Dakatos,Celia Black,and Peter and Gordon etc.


Paul wrote his first song at age 14 and was playing guitar,John wrote heavy deep poetry but didn't start writing songs until he met Paul and was impressed that he wrote his own songs,and he too started to write his own songs at age 17,and they wrote together and never stopped from then on.Paul wrote the very pretty song I'll Follow The Sun at only 16!