John Lennon was always a man of extremes. As a Beatle and later as a solo artist, he explored the limits of consciousness (“Lucy In the Sky With Diamonds”), grappled with radical politics (“Revolution”), pleaded for global utopia (“Imagine”) and laid bare his personal demons (“Cold Turkey”). The humanity bursting from his songs can be overwhelming, yet that’s exactly why Lennon’s work continues to be embraced by musicians from every genre.