Because I have a fanmade Sayori-Sephiroth-Vecna plotline
>Vecna goes after Sayori
>Sayori starts complaining about traumas, headaches, nightmares, and grandfather clocks
>Sephiroth immediately recognizes Vecna’s curse being induced into Sayori
>In order to prepare for Sayori getting her bones cracked, Sephiroth prepares to play One Winged Angel since Vecna’s weakness is music
>When Sayori starts levitating because of Vecna, Sephiroth plays One Winged Angel in full volume in front of Sayori, liberating Sayori from Vecna’s curse