Somebody called it!

So, I was listening to Car Talk a few months back, and the caller had, instead of a question, an idea. He had been driving down the highway, when he happened to drift over on to the rumble strips, which, by sheer coincidence, rumbled at the base tone of the song he was listening to on the radio. So naturally, he thought to himself, "Why don't they adjust the size of the rumble strips so that, as you are driving down them, you hear a little tune?"

Well, as with all things strange and beautiful, Japan has the answer. My only question: What is this going to do to Japanese tires?