That is a very good question. My answer would be the CD "O Brother Where Art Thou?"
Uncontrived music might be best described as music created by an individual who has lived what he/she sings.
The "Blues" is best performed by those who have lived a tough life. The best "Country" is performed by those who have actually grown up in the country.
This is one reason I don't think we'll again see original artists of times past. The coal miner's daughters growing up today are shopping at Wal-Mart and eating at McDonalds.
What, the Boss didn't live the life of a New Jersey teenager? He may have a silver spoon in his mouth now, but he grew up blue-collar middle class.