I have to say, I am disappointed with this soundtrack too (like literally 86% of the people here, I assume).
But I'm a little optimistic about it (I say little, because I try to not make huge expectations).
The series is not done yet.
Maybe next season will have some of it.
I hope so, the animation is really good, but sadly the music is not as good.
I can understand if they want to make original music, and that's no problem, but it would be nice to hear some of the game music in it. Or at least a better original soundtrack.
That's no excuse, it's a professional studio, if these fan arranges on YouTube can do it justice, then I bet they can do it too.
Seriously, all of the fan orchestrated
versions of Prelude I listened to feel like they could be worked on and used in an animation.
And they could have easily used the more fast paced songs like Beginning, Boss Fight, Aquarius and Mad Forest in intense scenes.
Songs like Nightmare, Destiny, Anxiety, Encounter in dark atmospheric scenes.
And my heart hopes they might use Deja Vu next to the end, and use Overture and Big Battle in the fight with Dracula.
But again, I just said I was try to not bring my expectations too high, but the fact that they could be arranged to fit in perfectly is what bothers me.
It's not only good music in-game, it would fit nicely, it just has to be used correctly, and it's too good not to use!
But well, I'm staying with a clear mind, and just hoping for something better, even if they end up just making original tracks and nothing more.