Michael Myers first appeared in John Carpenter's Halloween in 1978, where Carpenter's own minimal score became as famous as the masked killer himself. The main theme and its chase variants use a repeating piano motif in an unusual time signature, creating unease that built the slasher genre's sound. Clips of the music spread through trailers, sequels, Halloween playlists and meme edits, and it remains a shorthand for a silent stalker approaching, instantly understood by horror fans and casual viewers alike every October.