 To mimic the sound of a harpsichord on "In My Life", after Lennon had suggested he play something "like Bach", Martin recorded the piano solo with the tape running at half-speed.When played back at normal speed during the mixdown, the sped-up sound gave the illusion of a harpsichord.In this way, the Beatles used the recording studio as a musical instrument, an approach that they and Martin developed further with "Revolver".