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The Beatles’ final song arrives thanks to AI audio tech

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The Beatles just announced that their final collaborative track, “Now and Then,” is dropping on November 2nd. Using the machine learning tech developed for Peter Jackson’s Get Back docuseries, producers successfully isolated John Lennon’s vocals from an unreleased 1970s demo cassette. It’s a remarkable showcase of AI unearthing lost music history without faking it.

The Beatles’ final song arrives thanks to AI audio tech
Image: theverge.com

What do you do when the last vocal track from your late bandmate is trapped inside a muddy cassette tape from the 1970s? You call Peter Jackson’s audio-cleaning AI.

The Beatles have officially announced the release of “Now and Then,” billed as the final song featuring all four members: John Lennon, Paul McCartney, George Harrison, and Ringo Starr.

The track began as an unfinished home demo recorded by Lennon. For decades, the surviving members wanted to finish it, but the technology of the time could not separate Lennon's vocals from the intrusive piano track without turning his voice into a distorted mess.

De-mixing history

The breakthrough came courtesy of WingNut Films, the production house behind Peter Jackson's 2021 Disney Plus docuseries The Beatles: Get Back. Jackson's team developed machine-assisted learning tech to isolate individual speaking voices and instruments from archival mono recordings.

Earlier this year, McCartney teased that the same de-mixing tech was applied to Lennon’s old cassette. The AI managed to lift Lennon’s voice cleanly off the tape, preserving its original tone without artifacts.

With that pristine vocal track in hand, McCartney and Starr went back into the studio to complete the song, incorporating guitar tracks Harrison recorded before his death. McCartney admitted to becoming quite emotional hearing Lennon on a genuine Beatles recording in 2023, while Starr called it the closest they will ever come to having John back in the room.

The rollout is fully orchestrated. A 12-minute short documentary directed by Oliver Murray drops on November 1st, followed by the song's global release on November 2nd and a music video on November 3rd. It will also ship as a double A-side vinyl alongside “Love Me Do,” their very first single.

Why it matters

While the music industry spends most of its time panicking over synthetic voice clones and automated song generators, this is an masterclass in how AI should actually be used in creative industries.

The Beatles did not generate a digital ghost of John Lennon or synthesize lyrics he never wrote. Instead, they treated machine learning as an invisible, high-precision scalpel to rescue a real performance that physical media had degraded.

We think this sets a vital benchmark for archival restoration. Major labels sit on vast vaults of bootlegs, rehearsal tapes, and damaged stems that were previously unusable. The de-mixing tech proven here transforms those historical remnants into commercially viable releases without crossing the uncanny valley of generative mimicry.

Sources (1)

  1. [1]
    theverge.com(opens in a new tab)Originaltheverge.com

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