Variety has a new interview with Giles Martin about his most-recent work with the Beatles.
....With the strings, I thought I might as well rip off my dad — which I did do. My dad was an amazing string arranger. If I’m gonna rip off my dad, you might as well do it for the last Beatles song. There were some times where Paul was like, “We shouldn’t do that, you’re going a bit too far, or “We should try and do this.” Because, even with my dad, even with “Yesterday,” the first string thing (with the Beatles), Paul would have very, very strong ideas about how you want things to sound. And generally, obviously, it’s the Beatles — he’s right. I’m pleased we added the strings. I just wanted it to be as Beatles as possible, basically. I wanted people to listen to this and go, “Yeah, this is a Beatles record.”
...When you went back to what was done in the studio in the mid-‘90s, even though the time they spent working on the song then was short, was there enough of George on there that you were really able to use something of George’s?
More than something of George’s. George was playing acoustic and electric guitar on it. What was really interesting is what Paul would say to me [in the process of] doing the strings and then going through the arrangement. The strings are quite rhythmical, as you heard, the sort of chuggy “Eleanor Rigby” style kind of strings I’ve got in there. And Paul was very deliberate in saying to me, “Listen carefully — isolate George. Play it to me. We need to make sure that we are empathetic to the rhythm that George is trying to lay down here.” Because that’s what he was good at. That’s what I learned from Paul. You know, (George is) not here to say he doesn’t like the string arrangement. So let’s make damn sure that we respect his rhythm playing on the electric guitar when he’s playing it.
So, no AI, no. It might have been easier if I used AI, but I didn’t. And it’s funny, because it gives a different quality. I was listening to the song today, and the backing vocals have a sort of tape feel to them, like they’re on tape. They feel like they’re from the Beatles, and they are from the Beatles. I think if they were from some machine learning program, they wouldn’t sound right.
All I can say is that I’m definitely not doing it right now. I mean, as you know, the answer to that question will be the same. It’s that we’ve just done this, and… With Peter’s video, and the sensitivity around the project, I’m really proud of what we’ve done. I think it is emotional. And I think we have to let the dust settle on this first before we make any decisions about what we’re going to do next — that is my final answer on that. As you’d expect!