Theater bells have long been part of live performance, rung in foyers and auditoriums to tell audiences to take their seats before a show begins. The familiar chime became shorthand for the theater itself, so short recordings are now widely used online as a simple stage cue in videos, school projects and amateur productions. Because the sound is instantly recognisable and needs no explanation, creators keep using it to open performances, mark scene changes and give a sketch a formal, theatrical frame.