 In contrast to the Beatles' first two albums, all 13 tracks on "A Hard Day's Night" were written by John Lennon and Paul McCartney, showcasing the development of their songwriting partnership.The album includes the song "A Hard Day's Night", with its distinctive opening chord, and "Can't Buy Me Love", both transatlantic number-one singles for the band.Several of the songs feature George Harrison playing a Rickenbacker 12-string electric guitar, a sound that was influential on the Byrds and other groups in the folk rock movement.