After hearing there was such a musical, I finally found the title and looked it up on Amazon.com. Unfortunately, it's in German. However, the reviews are raves. I would love to find this somewhere I could download, but I doubt Wal-Mart or iTunes music libraries will have it.
Of course, Disney will not want to ever release this in the states because they fear kids will want to go to it and find it lacking a happy ending and matching more the book. So, unless it goes to London's West End, we may be out of luck.