The sound comes from an edit of the Legend of Zelda track on the Toy Music: Dancing Super Mario Brothers CD, an arrangement that reworks Nintendo themes in a toy instrument style. By removing the recognisable Zelda parts, the edit leaves only the backing accompaniment, which circulated online as a standalone clip because it sounds familiar yet incomplete. Editors keep using it for game videos where that missing melody becomes the point, turning a well known theme into light background music.