As one-half of the husband-and-wife harmony duo Ian & Sylvia, Ian Tyson was at the forefront of the early-'60s folk revival and became a pioneer of the emerging country-rock genre later in the decade. Among his many creative achievements, the former Canadian rodeo rider turned singer/songwriter is perhaps best-known for writing "Four Strong Winds," a song that became a widely covered folk standard and remains one of Canada's most beloved anthems. Although Ian & Sylvia initially made their fortune amid the same bustling Greenwich Village scene that launched the careers of Bob D...