Very nice. In testing this, I found some songs where a chord change happens very soon after the autoscroll moves forward to the next page. You don't have enough to time to read the next chord and make the change. Without being able to see ahead of the current song position at all times, its not quite functional.
Chordify does it differently: http://chordify.net/chords/family-of-the-year-hey-ma-loma-vi...