Imagine creating a loop and clicking automated practice loop. Your loop would start at half tempo. When you reach 90 percent(or whatever percent you define) accuracy, the tempo would bump up some, maybe half that much faster or 10 percent faster. When you reach 90 percent accuracy the tempo would bump up some more. This would continue until you can play the loop at tempo at 90 percent (or whatever percent you want) accuracy. This is an idea I had a long time ago that I think would be an incredible tool in SmartMusic.