Quite a claim, I know. If you're not on to Ian Tyson, such an assertion will sound preposterous. If you know his music, it might seem at least plausible. But it's the truth, at least to this man's ears. What makes it so great? First of all, the pathos. There's a whole world of sorrow summed up in three-plus minutes of musical mastery. Besides being the greatest, this is probably the saddest song ever written. You can feel these poor women's sorrow as they'v..