You" and the next two tracks on Revolver are the first examples of pop music "giving voice to the complexities of the breakthrough experience" afforded by LSD and other psychedelic drugs. "Got to Get You into My Life" Described by Riley as the album's "most derivative cut", "Got to Get You into My Life" was influenced by the Motown Sound and written by McCartney after he had seen Stevie Wonder perform at the Scotch of St James nightclub in February. The horn players on the track included members of Georgie Fame's group, the Blue Flames. To capture the desired sound, microphones were placed in the bells of the brass instruments, and the signals were heavily limited. A month later, a tape copy of these horn parts was superimposed with a slight delay, thereby doubling the presence of the brass contributions. Rodriguez terms the completed track "an R&B-styled shouter". Although cast in the form of a love song, McCartney described the lyric as "an ode to pot, like someone else might write an ode to chocolate or a good claret". The initial version of the song, as issued on Anthology 2, featured acoustic backing and organ, and a harmonised refrain of "I need your love", which was replaced by Harrison's guitar break on the more uptempo remake. "Tomorrow Never Knows" Rodriguez describes Lennon's "Tomorrow Never Knows" as "the greatest leap into the future" of the Beatles' recording career up to this point. The recording includes reverse guitar, processed vocals, and looped tape effects, accompanying a strongly syncopated, repetitive drum-beat. Lennon adapted the lyrics from Timothy Leary's book The Psychedelic Experience: A Manual Based on The Tibetan Book of the Dead, which equates the realisations brought about through LSD with the spiritually enlightened state achieved through meditation. Originally known as "Mark I", and then briefly "The Void", the eventual title came via one of Starr's malapropisms. Lennon intended the track as an evocation of a Tibetan Buddhist ceremony. The song's harmonic structure is derived from Indian music and is based on a high-volume C drone played by Harrison on a tambura. Over the foundation of tambura, bass and drums, the five tape loops comprise various manipulated sounds: two separate sitar passages, played backwards and sped up; an orchestra sounding a B chord; McCartney's laughter, sped up to resemble a seagull's cry; and a Mellotron played on either its flute, string or brass