)" and "Superhuman."Rather than focusing on individual vocal moments, this episode explores what makes NCT 127's music feel so rich in the first place: the harmonies, vocal layering and intricate arrangements that have become a hallmark of SM Entertainment's sound.Listening to the isolated vocals reveals just how much detail is hidden beneath the production. Every song is packed with stacked harmonies, countermelodies and subtle vocal textures that transform already great songs into something even more rewarding on repeat listens.