If you grew up with brothers and some form of pool access in the 1980s, you probably played Jaws. Our version went something like this: One brother (the meal) treads water; another (the shark) swims ...

Two simple notes – E and F – have become synonymous with tension, fear and sharks, representing the primal dread of being stalked by a predator. And they largely have “Jaws” to thank. Fifty years ago, ...