Photo Credit: Photo by Danny Abriel
Date: October 31, 2008Source: Dalhousie University
Summary: It's the most famous chord in rock 'n' roll, an instantly recognizable twang rolling through the open strings on George Harrison's 12-string guitar: the opening chord to the Beatles song "A Hard Day's Night." Now, a researcher has used a mathematical calculation known as Fourier transform to solve the Beatles' riddle. The process allowed him to decompose the sound into its original frequencies using computer software and parse out which notes were on the record.
It’s the most famous chord in rock 'n' roll, an instantly recognizable twang rolling through the open strings on George Harrison’s 12-string Rickenbacker. It evokes a Pavlovian response from music fans as they sing along to the refrain that follows:
It’s been a hard day’s night
And I’ve been working like a dog
The opening chord to A Hard Day’s Night is also famous because for 40 years, no one quite knew exactly what chord Harrison was playing. Musicians, scholars and amateur guitar players alike had all come up with their own theories, but it took a Dalhousie mathematician to figure out the exact formula.
“I started playing guitar because I heard a Beatles record—that was it for my piano lessons,” says Jason Brown of Dalhousie’s Department of Mathematics and Statistics with a good laugh. “I had tried to play the first chord of the song many takes over the years. It sounds outlandish that someone could create a mystery around a chord from a time where artists used such simple recording techniques. It’s quite remarkable.”
Four years ago, inspired by reading news coverage about the song’s 40th anniversary, Dr. Brown decided to try and see if he could apply a mathematical calculation known as Fourier transform to solve the Beatles’ riddle. The process allowed him to decompose the sound into its original frequencies using computer software and parse out which notes were on the record.
read more: http://www.sciencedaily.com/releases/2008/10/081030201607.htm
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