The Holy Grail of Rock, "A Hard Day's Night" Chord, Solved by Math
Take that, sweet mystery of rock 'n roll. Math has... ...ed the Holy Grail of Rock: the mysterious "A Hard Day's Night " chord.Dalhousie University math professor J...
https://www.neatorama.com/2009/01/02/the-holy-grail-of-rock-a-hard-days-night-chord-solved-by-math/
