Slave songs of the U.S.

From what the introduction of Slave Songs of the United States describes, we can see that the authors clearly have a good opinion of black people. They praise their musical works, and style, but their view of them is warped. They stereotype blacks by calling them "half barbarous." The authors wrote certain lyrics down in a fasion to display the African-American dialect that was used, such as "sperichils."  It is interesting how much they try to promote the black's work, but then view them as a lower class. I feel that the introduction is very back and forth between views. The authors are good-willed towards the African-Americans, and like their "soul," but at the same time they make the race out to be uncivilized and uncultured, below them, if you will.