There's a world of difference between being able to identify the elements of a song that make it an earworm, and being able to write an "earworm".

This article tells what elements are found in an earworm, but doesn't really tell how to write a catchy song.

That's not surprising, since the author is a music critic and author, not an a songwriter.

And as the author admits: "If we could pinpoint exactly how to write an earworm, a lot of pop songwriters would be out of work."

-- David Cuny
My virtual singer development blog

Vocal control, you say. Never heard of it. Is that some kind of ProTools thing?