Just got on this system, so am way slow with this info.

If you are still looking for something, search for Roni Music's Amazing Slowdowner. It can be downloaded and used free for trial. It will work with music CD's, WAV files, etc. Used by many fiddlers for learning tunes. Will slow any music, will transpose, will loop. Fairly easy to learn and use. If you like it, you pay about $60, and get a code to unlock for full use.