John at EMI Studios, 11 September 1963. Photo by Robert Freeman -- Producer, George Martin (the true "5th Beatle" ) is talking music w/Lennon. G.Martin played piano on certain songs, and he arranged the strings etc... the horns on Day in a Life, the strings on Eleanor Rigby, and ANYTHING in that regard, more than a producer - this day &age, he would be a co-writer for sure.
The Beatles return home after successful Summer 1964 (First) US & Canada Tour, pictured at London Heathrow Airport, 22nd September 1964. George Harrison, Paul McCartney, Ringo Starr, John Lennon, Brian Epstein.