It an iPod app, so you can look it up on their site, or iTunes, ore on the iPod. I've been practicing for a total of six hours. And yes it does let you input previous practice.
You see us as you want to see us...In the simplest terms, in the most convenient definitions. But what we found out is that each one of us is a brain...and an athlete...and a basket case...a princess...and a criminal...Sincerely yours, the Breakfast Club.