Copy to your browser and read pages 11 through 14.

http://books.google.com/books?id=DhlT0z9DX3cC&lpg=PP1&dq=the%20sounds%20of%20slavery&pg=PA12#v=onepage&q=ware&f=false

Reference Data:

The Sounds of Slavery: Discovering African American Music Through Song, by Shane White and Graham J. White, 2006