Musical stings have long been used in film, television and theatre to signal suspense, surprise or a dramatic turn, and that same shorthand has carried over to online video. Creators on short-form platforms and reaction channels use this kind of cue because audiences recognise it instantly, even out of context, as a warning that something is about to change. Its length makes it flexible for editing, allowing it to sit under a build-up or land on a single moment, which is why it remains a staple for comedy, commentary and storytelling edits.