A Hard Day's Night, is a crucial inflection point in the Beatles' career. In 1964 The Beatles were the most popular band on the planet, their arrival in the United States opened the doors to their internationalization, their concerts and chart topping singles brought beatlemania to its highest point. United Artist had achieved its intentions of bringing the Beatles to the big screen, and this was the perfect excuse for the band to start working on an iconic album that would mark the beginning of their revolution and their new visions of artistic life. Lennon and McCartney's compositions had evolved exponentially, There's been a particular jump forward in ballad writing. The steamroller power of the harmonies, The audacity of chord choices, the gleaming sound of George Harrison's new Rickenbacker alongside the confident Northern blasts of harmonica, and a band and producer grown more than comfortable with each other brought out the dominant sound of the beatles in their peak as a pop band. And with good humor, energy and irresistible enthusiasm the beatles had the world at their feet.