The Paul McCartney and John Lennon songwriting partnership,​ known as Lennon-McCartney​,​ wrote an enormous collection of songs for The Beatles. Throughout the years the band’s albums included songs from George Harrison and Ringo Starr as well, but their diminished inclusion was by design, according to McCartney.

A new interview with McCartney has revealed the pair’s agreement early into the band’s journey.

The star revealed he and Lennon agree to remain as the main writers for The Beatles.

He said: “I remember … saying to John: ‘Look, you know, it should just be you and me who are the writers.'”

With this, he added: “We never said: ‘Let’s keep George out of it,’ but it was implied.” (Via The New Yorker)

READ MORE: Paul McCartney: ‘The Beatles split because of Yoko’ – Lennon disagreed

Harrison grabbed one or two writing credits throughout the band’s discography.

The most he garnered in one record was in the band 1968 White Album.

In the 24x platinum album, Harrison wrote four tracks: While My Guitar Gently Weeps, Savoy Truffle, Long Long Long and Piggies.

The late star did pen some other incredibly noteworthy songs from The Beatles’ library, however.

​Shortly thereafter Harrison announced his exit from the band in the middle of recording the album.​ He eventually returned to finish the record.​

Despite the star’s often laboured relationship with McCartney, the upcoming documentary from Disney Plus is reportedly going to show a different side to the band in their final days.

The documentary, The Beatles: Get Back, is being directed by the Lord of the Rings director Peter Jackson.

Jackson combed through dozens of hours of footage to show the band’s happy demeanour during the Let It Be sessions.

McCartney has since praised Harrison’s songwriting in the past.

He said: “It’s funny, George Harrison often said to me: ‘How do you do that!?’

“‘Cos his stuff is sort of biographical, he’ll be feeling a certain way.”

McCartney went on: “Here Comes The Sun? He’s talking about his life: Here comes the sun, it’s better, the ice has melted. But he said: ‘How do you do this? How do you make these people?'”

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