Created by sound design studio Sixième Son as the sonic logo for SNCF, France's national railway company, the chime is played across stations, trains and official communications to introduce announcements and reinforce the brand. Because millions of passengers hear it during everyday journeys, it has become closely associated with French rail travel itself, rather than just a single advert or campaign. Online, creators reuse it to evoke France, train travel, or the feeling of waiting for a departure, which keeps it familiar well beyond the platform.