“I think of it as maybe the first really heavy guitar riff.” Sean Lennon says his dad deserves more credit for shaping heavy music

LEFT: Sean Lennon performs with Les Claypool's Fearless Flying Frog Brigade at TD Amp Ballantyne on June 16, 2026 in Charlotte, North Carolina. RIGHT: John Lennon on the set of 'The Ed Sullivan Show' at CBS's Studio 50, New York, New York, February 8, 1964.
Sean Lennon says his love of dark music can be traced back to his father John Lennon’s heaviest Beatles songs. (Image credit: Sean Lennon: Jeff Hahne/Getty Images | John Lennon: UPI/Bettmann via Getty Images)

Sean Ono Lennon says his fascination with dark, dissonant music can be traced back to two unlikely sources: Disney’s Fantasia and one of his father John Lennon’s heaviest Beatles songs.

Speaking with Rick Beato, Lennon reflected on the musical influences that shaped him, arguing that “I Want You (She’s So Heavy)” deserves far more recognition as one of rock’s foundational heavy electric guitar moments before revealing another story behind one of the Beatles’ most sophisticated compositions.

As his work with Primus bass guitarist Les Claypool has shown, Sean Lennon has inherited more than his father’s surname. There’s a psychedelic streak to his music, but it’s the darkness that fascinates him most.

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Of his early musical influences, he says, “All of my classical tastes came from the [Disney] film, Fantasia. I was obsessed.

“It might sound a little gauche, but it’s true,” he adds. “It’s actually an incredible selection of pieces. I mean, it’s Stravinsky’s The Rite of Spring and ‘Night on Bald Mountain’ by Modest Mussorgsky.”

That soundtrack also introduced him to music’s darker side.

“All those notes are so dark and cool, and I think I’m really attracted to dark and dissonant notes,” he continues. “I’ve always had a love of that, and I think it’s actually because of the [Beatles] song ‘I Want You (She’s So Heavy)’ as well. That really impacted me as a kid. My dad had written this very dark riff. I really wondered where it came from.”

The John Lennon composition, which closes side one of 1969’s Abbey Road, arrived at a time when rock music was growing noticeably heavier. The Who had become synonymous with sheer volume, Jimmy Page and Jeff Beck had laid much of the groundwork for heavy riffing, Blue Cheer had supercharged “Summertime Blues,” and Black Sabbath were about to codify heavy metal. Against that backdrop, Sean Lennon believes his father deserves more credit in the genre’s origin story.

“It was so unprecedented at that time,” he says of the song. “In a way, I think of it as maybe the first really heavy guitar riff. It’s so sophisticated, and it’s so unlike anything he wrote otherwise. It reminds me that ‘The Rain Song’ is unlike any other Led Zeppelin song. There are certain songs that just kind of stick out, like, ‘What was happening when that one was written?’”

Sean Lennon performs with The Claypool Lennon Delirium as part of Claypool Gold at ACL Live at the Moody Theater on June 23, 2026 in Austin, Texas

(Image credit: Getty Images)

Lennon then turned to another Abbey Road standout, offering a glimpse into how one of the Beatles’ most remarkable songs came together.

“‘Because’ is really shockingly complex,” he says. “The famous story is that my mom was playing ‘Moonlight Sonata’ [on piano] and my dad said, ‘Wait, stop. Can you play those chords backward, or maybe write them down for me?’ She did, and that was sort of the basis of ‘Because’—at least according to my mom.”

Beethoven’s sonata, composed in 1801, shares the same melancholy that attracted John Lennon—and later captivated his son.

Speaking to Guitar Player about his songwriting partnership with Claypool, Sean Lennon previously said that a shared love of music’s darker side is a cornerstone of their work. The stark juxtaposition of bizarre comedy and dark surrealism underpins the music of both generations of Lennons.

Meanwhile, McCartney has said he still writes songs as though John Lennon were sitting beside him, imagining how his longtime songwriting partner might respond to each new idea.

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A freelance writer with a penchant for music that gets weird, Phil is a regular contributor to ProgGuitar World, and Total Guitar magazines and is especially keen on shining a light on unknown artists. Outside of the journalism realm, you can find him writing angular riffs in progressive metal band, Prognosis, in which he slings an 8-string Strandberg Boden Original, churning that low string through a variety of tunings. He's also a published author and is currently penning his debut novel which chucks fantasy, mythology and humanity into a great big melting pot.