The Guess Who/Bachman-Turner Overdrive guitarist Randy Bachman not that long ago gained access to the Beatles’ tapes through Beatles archive overseer Giles Martin and figured out the component parts of that enigmatic chord that famously announces the start of “A Hard Day’s Night,” one of the greatest songs ever from 1964. It’s more complicated than you think. Nerd the eff out.
(I know this is from 2010, but if I missed it, odds are many other people missed it, too. And this is too important to slide into oblivion. Esoteric knowledge!)