I played the A-section for Heart and Soul (the song from the movie "Big") and its response was enough to tell me it was not going to be playing actual duets. I

I played the A-section for Heart and Soul (the song from the movie "Big") and its response was enough to tell me it was not going to be playing actual duets. I'd be interested in a version that has learned accompanying portions to many popular melodies. If I could play the right hand part of a piece and it played the left hand I'd be very impressed -- also this would actually be useful software for aspiring pianists.