Thanks for the comments. Keep them coming. I will try that program. There are several others that I have tried. Some are amazing slow downer, clog amp, win amp. One that I like on the iPad is DJ (looks like a DJ double CD system, Will slow down and play two CD with DJ type switching. For those will to play. Roland makes a Roland Tutor that is built into the Roland digital pianos, and is also sold separate for a hefty price.