I am back!
The movie was pretty good. There wasn't much music though. I think less than 20 tracks, or at least it felt that way.
As expected nothing new, but it sounded well composed and fits the movie bretty good. The most "experimental" track was a battle theme with koto and e. guitar. I'll just type down a few details since I'm sleepy.
Singers: Kasahara, Remi, Yuriko.
-Main theme from Zero was used for scenes related to zero.
-Hana no Uta verse and pre-refrain melodies are leitmotifs.
-The strings melody from PV 2 (right after Yuriko's part) seems to be Shiro's theme. Also, the aggressive chanting from the end of PV 2 wasn't used in the movie.
-Remi song from PV 1 was not used in the movie. It was instrumental instead. The arrangement from PV 2was used for movie 2 teaser.
-The intro credits (is it still intro if it played like 20 minutes into the movie? hue) has a bretty good dark song by Kasahara.
-Barely any ambiance tracks.
-Battle themes sounded pretty good from what I could hear. The sound effects from the fights were pretty loud.