You can read the study yourself here. It begins with a summary of the previous research on “the concepts of musical ‘catchiness’ and song ‘hooks,’” as well as the advice successful musicians often give for writing “hooks” that will stick with listeners for life. It’s not as easy as it looks, though one of the hallmarks of a successful earworm is simplicity. As Joanna Klein writes at the New York Times, Jakubowski and her colleagues “found that earworm songs tended to be fast, with a common, simple melodic structure that generally went up and down and repeated, like ‘Twinkle Twinkle Little Star.’”
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