Did Lennon or McCartney Write the Beatles 1965 Song “In My Life”? A Math Professor, Using Statistics, Solves the Decades-Old Mystery

In 2009, guitarist Randy Bachman of the Guess Who and Bachman-Turner Overdrive had the rare opportunity to hear the individual tracks that make up that mythic opening chord in the Beatles’ “A Hard Day’s Night,” an enigma that has baffled musicians for decades. Bachman found that it’s actually made up of a combination of different chords played all at once by George, John, and Paul. The discovery made for a great story, and Bachman told it the following year on his C