OK, I'm not actually proposing to name the most beautiful melody in the world—I'm not that arrogant or that dumb (though I do have some thoughts on the matter, which I’ll share below). For now, I want to offer a small tour of some of the most beautiful and enduring melodies I happen to know, and talk about what makes them that way. Will we thereby find the eternal secret of great melody? Well, no. But it's one of those questions that can get you somewhere if you don't take it too seriously.