i couldn't watch the teaser just listen but ia with you that it's similar to eternity. i liked the full song of eternity more than the teaser because it was different from their other songs (and the teaser made it sound more like voodoo doll - bean's part was similar imo) but it got boring quickly, i hope this one is better. and yeah that must be it, the strings kind of too but ofc there's no copyright on that string sound