History: Early Years Of The Beatles

The band's stylistic range expanded in another direction in 1966 with the B-side to the "Paperback Writer" single: "Rain", described by Martin Strong in The Great Rock Discography as "the first overtly psychedelic Beatles record". Other psychedelic numbers followed, such as "Tomorrow Never Knows" (actually recorded before "Rain"), "Strawberry Fields Forever", "Lucy in the Sky with Diamonds" and "I Am the Walrus". The influence of Indian classical music was evident in songs such as Harrison's "Love You To" and "Within You Without You", whose intent, wrote Gould, was "to replicate the raga form in miniature". Summing up the band's musical evolution, music historian and pianist Michael Campbell identifies innovation as its most striking feature. He wrote, "'A Day in the Life' encapsulates the art and achievement of The Beatles as well as any single track can. It highlights key features of their music: the sound imagination, the persistence of tuneful melody, and the close coordination between words and music. It represents a new category of song—more sophisticated than pop ... and uniquely innovative. There literally had never before been a song—classical or vernacular—that had blended so many disparate elements so imaginatively." Music theorist Bruce Ellis Benson agrees: "Composers may be able to conceive new rhythms and chord progressions, but these are usually improvisations upon current rhythms and chord progressions. The Beatles ... give us a wonderful example of how such far-ranging influences as Celtic music, rhythm and blues, and country and western could be put together in a new way."
In The Songwriting Secrets of The Beatles, Dominic Pedler also emphasizes the importance of the way they combined genres: "One of the greatest of The Beatles' achievements was the songwriting juggling act they managed for most of their career. Far from moving sequentially from one genre to another (as is sometimes conveniently suggested) the group maintained in parallel their mastery of the traditional, catchy chart hit while simultaneously forging rock and dabbling with a wide range of peripheral influences from Country to vaudeville. One of these threads was their take on folk music, which would form such essential groundwork for their later collisions with Indian music and philosophy." As the personal relationships between the band members grew increasingly strained, their individual influences became more apparent. The minimalistic cover artwork for the White Album contrasted with the complexity and diversity of its music, which encompassed Lennon's "Revolution 9", whose musique concrète approach was influenced by Yoko Ono; Starr's country song "Don't Pass Me By"; Harrison's rock ballad "While My Guitar Gently Weeps"; and the "proto-metal roar" of McCartney's "Helter Skelter".
• Contribution of George Martin
George Martin's close involvement in his role as producer made him one of the leading candidates for the informal title of "fifth Beatle". He brought his classical musical training to bear in various ways. The string quartet accompaniment to "Yesterday" was his idea—the band members were initially unenthusiastic about the concept, but the result was a revelation to them. Gould also describes how, "as Lennon and McCartney became progressively more ambitious in their songwriting, Martin began to function as an informal music teacher to them". This, coupled with his willingness to experiment in response to their suggestions—such as adding "something baroque" to a particular recording—facilitated their creative development. As well as scoring orchestral arrangements for recordings, Martin often performed, playing instruments including piano, organ and brass.