It was inevitable that the constant grind of touring, writing, promoting, and recording would grate on the Beatles, but the weariness of Beatles for Sale comes as something of a shock. Only five months before, the group released the joyous A Hard Day's Night. Now, they sound beaten, worn, and, in Lennon's case, bitter and self-loathing. His opening trilogy ("No Reply," "I'm a Loser," "Baby's in Black") is the darkest sequence on any Beatles record, setting the tone for the album. Moments of joy pop up now and again, mainly in the forms of covers and the dynamic "Eight Days a Week," but the very presence of six covers after the triumphant all-original A Hard Day's Night feels like an admission of defeat or at least a regression. (It doesn't help that Lennon's cover of his beloved obscurity "Mr. Moonlight" winds up as arguably the worst thing the group ever recorded.) Beneath those surface suspicions, however, there are some important changes on Beatles for Sale, most notably Lennon's discovery of Bob Dylan and Далее...