‘It’s all real’: McCartney clarifies use of AI to make new Beatles record

Paul McCartney has clarified that a new Beatles record that will soon be released is “all real” and uses original voices and music, after initially saying that the song was made possible by using Artificial Intelligence.

“We’ve seen some confusion and speculation about it. Seems to be a lot of guesswork out there,” McCartney tweeted on Thursday. “Can’t say too much at this stage but to be clear, nothing has been artificially or synthetically created.”

“It’s all real and we all play on it. We cleaned up some existing recordings – a process which has gone on for years,” he said.

The clarification came after he said that AI had been used to extract John Lennon’s voice from an old demo to create “the last Beatles record,” decades after the band broke up.

McCartney, 80, told the BBC  on Tuesday that the technology was used to separate the Beatles’ voices from background sounds during the making of director Peter Jackson’s 2021 documentary series, “The Beatles: Get Back.” The “new” song is set to be released later this year, he said.

Jackson was “able to extricate John’s voice from a ropey little bit of cassette and a piano,” McCartney told BBC radio. “He could separate them with AI. He’d tell the machine ‘That’s a voice, this is a guitar, lose the guitar.’”

Been great to see such an exciting response to our forthcoming Beatles project. No one is more excited than us to be sharing something with you later in the year.

We’ve seen some confusion and speculation about it. Seems to be a lot of guess work out there. Can’t say too much…

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— Paul McCartney (@PaulMcCartney) June 22, 2023

“So when we came to make what will be the last Beatles record, it was a demo that John had that we worked on,” he added. “We were able to take John’s voice and get it pure through this AI so then we could mix the record as you would do. It gives you some sort of leeway.”

McCartney didn’t identify the name of the demo, but the BBC and others said it was likely to be an unfinished 1978 love song by Lennon called “Now and Then.” The demo was included on a cassette labeled “For Paul” that McCartney had received from Lennon’s widow, Yoko Ono, the BBC reported.

McCartney described AI technology as “kind of scary but exciting,” adding: “We will just have to see where that leads.”

The same technology enabled McCartney to “duet” virtually with Lennon, who was murdered in 1980, on “I’ve Got a Feeling” last year at Glastonbury Festival.

Holly Herndon, a multidisciplinary artist with a doctorate in composition from Stanford University, used nascent AI machine technology on her last album, 2019’s “Proto,” and developed Holly+, an online protocol that allows the public to upload tracks to be reinterpreted and performed by a deepfake version of her voice. She theorized that the Beatles’ recording was likely created using a process called “source separation.”

“Source separation has become much easier to do with machine learning. This allows you to extract a voice from a recording, isolating it so that you might accompany it with new instrumentation,” she explained.

That differs from a deepfake vocal. “A deepfake is an entirely new vocal line spawned from a machine learning model trained on old vocal lines,” she said. “While it does not appear to be happening in this example, it is now possible to spawn infinite new media from analyzing older material, which is a similar process, in spirit, to this song.”

McCartney is set to open an exhibition later this month at the National Portrait Gallery in London featuring previously unseen photographs that he took during the early days of the Beatles at the start of “Beatlemania,” when the band rose to worldwide fame.

Paul McCartney, left, and John Lennon, two members of The Beatles, during a concert in London, on November 11, 1963. (AP Photo)

The exhibition, titled “Eyes of the Storm,” showcases more than 250 photos McCartney took with his camera between 1963 and 1964 — including portraits of Ringo Starr, George Harrison and Lennon, as well as Beatles manager Brian Epstein.