Hi Pretend,
No bother at all. Unfortunately I can’t provide you with a dump of the tracks because of the licenses of some of them, but I can suggest 2 things.
In the “About” section of the title screen, there is a page, I believe its the credits one, which has a track list. There you can find the name and artist of the known tracks :).
Regarding the unknown ones, they all come from the original game “蟲の姦獄”. So hypothetically speaking, if a person finds the original game, one can download it, open and extract all the original tracks without much effort :D.
All the tracks added by me can be found on OpenGameArt and the artists are mentioned in the credits.