M.Ted: It is that easy to write tunes, and everyone doesn't do it because, first, it seems too "formal" for a "creative" endeavor and, second, it requires a little discipline.

Remember that I was addressing the original focus of this thread: how to set a text, for someone who doesn't know how to go about it. If someone can just sit down and start dreaming up melodies, they don't need guidance on how to do it.