(USA Today) The concept of harmony was both intrinsic to the music of the Everly Brothers and sometimes foreign to their personal relationship.

Nevertheless, Phil, who died Friday at age 74, and Don, 76, forged an endearing sound and a half-century career that saw them hit the Billboard top 40 chart 26 times, influence artists ranging from The Beatles and the Beach Boys to Linda Ronstadt, Simon & Garfunkel, Neil Young and Alison Krauss, and land in both the Rock and Roll Hall of Fame and the Country Music Hall of Fame.

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