With a torso like his, I bet his chest voice sounds amazing.
(Chest voice: speaking/singing from the chest instead of the throat. For a great example, watch the movie "Into the Woods" and listen to Meryl Streep sing "Stay with Me".)
Ahahahaha, somehow I doubt that Beauty doesn't have much magic in her, considering all of the magic in her backstory. I like how direct the Beast is with his magic speech - he's not allowing the fountain any wiggle room here, so unlike the maze, it's not going to be able to lead her astray. That Beauty is a guest under the Beast's contract is an interesting detail which we should probably keep in mind for the future.