Breeze of old forest?
Great game, and personally I don't mind the multiple solutions bit, though that's just a "as long as I get it right it doesn't matter" approach. I do have to admit that when I first started a sudoku I loved the songs so much I wasn't paying attention to the puzzle ^_^'
Where did you get "Breeze of old forest" from by the way? It's wonderfully inspirational but I can't help thinking opening the sudoku game to find it every single isn't the most efficient way to listen to it.