WEB/TECH: How Math Unraveled the 'Hard Day's Night' Mystery

It took Dalhousie University professor Jason Brown six months and some advanced mathematical analytical techniques to crack the code behind one of the most mysterious sounds in music: the "prraaaaaangg" sound at the beginning of the Beatles' "Hard Day's Night." Guitarists have puzzled over how this chord is played for decades because it contains a note that would be impossible for the Beatles' two guitarists and bassist to play in one take, and experts have concluded that no multitracking was...

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