The concept of "earworms," those catchy tunes that replay in our minds, is scientifically known as "involuntary musical imagery." Interestingly, these snippets often contain upward melodic contours and repeated notes—traits designed to hook our attention. Ancient music also tapped into memorability: think of Gregorian chant's haunting simplicity. Such patterns show music's rootedness in psychology—how its composition plays on our neurology to become unforgettable. Share your own experience with an earworm and what you think makes a tune 'sticky'!