The precise origin, composer, and source work behind Sonnerie du PNJ are not identified in the available information. The French title means “NPC ringtone,” using the common gaming abbreviation for a non-player character. Online creators often apply NPC references to people who repeat phrases, follow predictable routines, or appear to wait for interaction like background characters in games. A short musical cue fits that joke by making a real-world moment resemble a programmed encounter, menu sequence, or character introduction.