Matikanetannhauser is a horse girl character from Uma Musume Pretty Derby, the Japanese multimedia franchise that began as a mobile game and expanded into anime and manga. Short character clips and voice style alerts from the series circulate widely on soundboards, where fans repurpose them as ringtones and stream pings. This notification version follows the same pattern as a Discord Notification used for message alerts, but with an anime character twist. Its alphabet themed upload title also helped it spread as a light, recognisable fan made alert online.