Ian Tyson, half of the folk duo Ian & Sylvia, has died at age 89

Legendary Canadian singer-songwriter Ian Tyson performs at the Western Folklife Center during the 28th annual National Cowboy Poetry Gathering, on Feb. 2, 2012, in Elko, Nevada.Ted S. Warren/AP TORONTO  Ian Tyson, the Canadian folk singer who wrote the modern standard "Four Strong Winds" as one half of Ian & Sylvia and helped influence such future superstars as Joni Mitchell and Neil Young, died Thursday at age 89.

Read at www.npr.org