ジェフ・エメリック
Engineer Geoff Emerick resigned during the recording of "Cry Baby Cry", though his departure was precipitated by Lennon and McCartney's obsessions over the recording of both "Revolution" and "Ob-La-Di, Ob-La-Da", respectively, and the overall tensions of the sessions. Emerick would not work with the Beatles again until the session for "The Ballad of John and Yoko" nine months later.