I uploaded scans of the booklet and artworks from the box set, and added track lengths for each disc.
We lack the source for the composer of the 9 first tracks though. It's probably Yoshiya Terayama (寺山 善也) since the game credits him as Music Composer, and the booklet as Lead Composer.
The same booklet contains an interview where he probably explains what he worked on, so we'd need a translation. I put the interview together on one image:
https://i.imgur.com/uA30VP0.jpg