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"A Hard Day's Night" is a song by the English rock band the Beatles. Credited to Lennon–McCartney, it was primarily written by John Lennon, with some minor collaboration from Paul McCartney. It was released on the soundtrack album A Hard Day's Night in 1964. [Wikipedia]
A Hard Day's Night is a song by The Beatles, written by Lennon–McCartney and led on vocal by John Lennon & Paul McCartney. Title from a Ringo malapropism; opens with the most analysed chord in pop. Within the catalogue, its title-track thread connects it to Help!; its film thread connects it to I Should Have Known Better, If I Fell, I'm Happy Just to Dance with You. The iconic title derives from Ringo's malapropism—a slip of tongue during press junketry that McCartney and Lennon weaponized into rock immortality. Recorded 16 April 1964 as album closer and film theme, the track opens with an iconographic chord analysed for decades by musicologists as hybrid harmonic voicing. The opening chord became the most scrutinized moment in pop music (Lewisohn 1988, p. 45). The film A Hard Day's Night was completed in April 1964, followed by the Rediffusion television special Around the Beatles, where the Beatles appeared just days after finishing principal shooting (Kozinn 1995, p. 79). The accompanying album represents the peak of the band's early period, full of energy and assurance (Kozinn 1995, p. 98).
The session work falls within the band's Beatlemania (1962–1964) period, recorded 16 Apr 1964 at EMI Studios, Abbey Road. George Martin produced; Norman Smith engineered. For session-by-session detail, see Mark Lewisohn's account on p.43 of The Complete Beatles Recording Sessions (excerpt below). The master emerged from take nine — “only the fifth complete run through” (Lewisohn p.43). The same morning, overdubs were added to that take: a second vocal and percussion, and a middle-eight solo recorded at half speed by George Martin on piano and George Harrison on guitar. Opening the record on its strident, ringing chord was George Martin's deliberate choice — a strong launch for both the film and the soundtrack LP (Lewisohn p.43). The full mix and overdub lineage is set out in the section below.