I have no idea what just happened, but I re-rendered a new wma file and the song came out fine this time. It sounds good. I still have the previous bad files and have loaded them and this new good file into my "gaelyn" DropBox. I am still relatively new to DropBox so I hope I shared the folder correctly so that anyone who wants to can access it? If not, please let me know what else I need to do.
Since I now have a good wma file of my song, you folks do not need to spend your time on trying to figure out why I was having the problem. The files are there for your curiosity.
Thanks for everybody's advice. It all does help us Newbies!