Story 
"I Want to Hold Your Hand" is a song by the English rock band the Beatles, written by John Lennon and Paul McCartney. Recorded on 17 October 1963 and released on 29 November 1963 in the United Kingdom, it was the first Beatles record to be made using four-track recording equipment. [Wikipedia]
McCartney and Lennon wrote it in the basement of Jane Asher's parents' house in late September 1963. Their brief from Brian Epstein was explicit: 'Write a song to crack America.' Capitol Records had refused to release the previous two UK No.1 singles in the US; this was the song that finally changed their mind. An original Lennon-McCartney composition recorded 17 October 1963, 'I Want to Hold Your Hand' became the Beatles' first major American chart hit and their most commercially successful single to date. The song's direct fan-address strategy placed it squarely within the Lennon-McCartney template of personal, intimate messages to listeners. The track's meticulously crafted production and infectious melodies established the single as a landmark of 1960s pop (Lewisohn 1988, p.32). The ambitious introduction features guitar chords as a springboard that propels the listener into the verse; released one week after With the Beatles, the song achieved remarkable commercial success, selling 1.5 million copies in six weeks (Kozinn 1995, p.73-74).
Cut on 17 October 1963 — the band's first session on the four-track machine that EMI had just installed. Seventeen takes. Hand-claps were overdubbed to fill the stereo image; the song was the band's first to be properly stereo-mixed. The track was recorded efficiently from take 2, suggesting the group's complete preparation and arrangement clarity before entering the studio. Two-track recording required precise coordination of all instrumentation and vocals performed simultaneously. George Martin's arrangement, with its distinctive guitar riff and clear harmonic support, created maximum radio impact within the technical constraints of early 1960s recording (Lewisohn 1988, p.32). The use of four-track recording provided George Martin and Norman Smith greater control over instrumental balance compared to two-track limitations; both felt the song might exceed She Loves You in commercial potential (Emerick 2006, p.202).