Just a nylon-pickin' minute. "Pick a Bale of Cotton", per se, has and had nothing to do with slavery. It was first sung, as far as we know, by a black singer who may or may not have composed it, but he certainly wasn't picking cotton at the time. It also, regarless of who composed it, not a song about blacks only.

This sounds to much like the fuss that occurred a couple of years back on a bluegrass site when someone decided that the line in Groundhog
"Up jumped Sal with a snigger and a grin" was really about a black slave owned by someone named Sal.

It also puts me to mind of the college professor who got fired for using the word "niggardly", which has a perfectly fine Swedish lineage and has nothing at all to do with Afro-Americans.

Get, if you'll pardon the expression, real.