Asked by “Fresh Air” host Terry Gross why it is that John Lennon has been said not to have cared for the sound of his own voice, Giles Martin, son of legendary Beatles producer George Martin, responded to the public-radio interviewer that the issue ran deeper than that:

“ ‘Well, I don’t think it was just his voice. He didn’t like, you know, my father always told me that the sounds that John had in his head were never the sounds that got on record.’ ” — Giles Martin

The younger Martin oversaw, including production and remixing, a 50th-anniversary four-disc “Sgt. Pepper’s Lonely Hearts Club Band” box set, released last month.