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Dalhousie researchers using math to uncover who wrote iconic Beatles’ song

WATCH: A Dalhousie University mathematician thinks he’s unraveled the mystery of who wrote the Beatles’ hit In My Life. Steve Silva explains.

Researchers from Canada and the U.S. are using math to unravel one of the greatest musical mysteries of the modern era: Who wrote “In My Life,” a nostalgic rock ballad on the Beatles’ 1965 album “Rubber Soul.”

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It’s a song both John Lennon and Paul McCartney have laid claim to, sparking an enduring debate on the authorship of the melody.

But a new statistical model developed by researchers at Dalhousie and Harvard universities that was used to analyze multiple Lennon-McCartney songs has concluded that Lennon likely penned “In My Life.”

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The Lennon/McCartney post-Beatles break up letter
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Jason Brown, a mathematics professor at Dalhousie, says the researchers analyzed the Beatles music using five main categories – melody notes, sequences of notes, chords, pairs of chords and melodic contour. Each category was then further broken down, resulting in 149 categories for data collection.

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He says the model, which is 80 per cent accurate, found a 98 per cent probability that Lennon wrote “In My Life.”

WATCH: Halifax professor describes Beatles research

Halifax professor describes Beatles research
Halifax professor describes Beatles research