The Beatles: A Hard Day's — Night

The soundtrack was a landmark in the Lennon–McCartney partnership, featuring 13 original tracks.

: The title track’s opening chord—variously described as an Fadd9 or a G eleventh suspended fourth —remains one of the most studied sounds in music history for its unique, "shimmering" quality. The Beatles: A Hard Day's Night

The 1964 release of A Hard Day’s Night —both as a feature film and a studio album —represented a transformative moment for The Beatles and pop culture at large. It was the first time the band demonstrated full artistic control, moving away from cover songs to an album of entirely original compositions while starring in a film that subverted the "jukebox musical" clichés of the era. The soundtrack was a landmark in the Lennon–McCartney