Like many traditional folk songs, the first person to write and play “Cotton Eye Joe” is a mystery. The song pre-dates the Civil War and was likely written between 1800 and 1860.

The American singer-songwriter joins guest host Talia Schlanger to discuss her latest release, The Liberated Woman's Songbook, which was inspired by a 1971 book of the same name.

Unearthing the censored history of American folk and popular music — and the ways we learn about the past. Elijah Wald, author of "Jelly Roll Blues: Censored Songs & Hidden ...