this is part of this light-hearted interview:
http://honoluluweekly.com/cover/2011/08/going-solo/
Tweedy is hailed as one of the most respected (and least pretentious) songwriters around. When asked to describe his singing voice in a New York Times article, he replied, “Somewhere between Gordon Lightfoot and a tea kettle. I wouldn’t get past the first round of American Idol.”