The melody is the familiar Windows logon chime from Microsoft's Windows operating system, the short jingle that played when signing in. Stripped of context and slammed through a bass booster with echo, it became a staple of the bass-boosted meme format that flourished on YouTube and TikTok, where everyday sounds get exaggerated into speaker-rattling drops. Editors reach for it as an ironic entrance theme: three seconds of nostalgia that signals something ordinary is about to be treated like a blockbuster moment.