West Dylan Thordson’s soundtrack for Glass has a difficult job, because the film is pulling together the emotional gravity of Unbreakable, the instability of Split, and the colder institutional setting of the final story. The music has to feel like a collision, but not a mess. Thordson handles that by giving the score a tense, controlled energy that always feels like something powerful is being suppressed just beneath the surface.

That matters because Glass spends so much of its running time asking whether its heroes and villains are broken people, delusional people, or something much stranger. The soundtrack keeps feeding that uncertainty. It can sound clinical one moment and mythic the next, which is exactly the balance the film is chasing.
Released in 2019, the album is also an interesting companion piece for fans of the trilogy as a whole. It does not simply recycle the mood of the earlier films. It tries to hold multiple identities in one frame, just like the movie does. That is what makes it such an intriguing listen. It feels like conclusion, confrontation, and unraveling all at once.
