The music is public domain so I'm afraid there isn't an organized OST, the in-game credits should have a lsit of the tracks and their authors if that helps. I'll try to get you a text list of the track names when I get the chance
Track list:
LAS LLUVIAS DE RANCHIPUR - ZAIRE
Katapulto - Danse Macabre [MODIFIED TO REMOVE INTRO]
Maybe I'm a bit conceited - Monplaisir
Did you jump or were you dropped? - Patrick Kilpatrick
Bugs! - Patrick Kilpatrick
Cantate Domino - Anonymous Choir
Deep Inside The Flesh - Monplaisir
Strange Town - Patrick Kilpatrick [MODIFIED TO REMOVE INTRO]
Fowl and Fruit - Patrick Kilpatrick
Land Without Bread Pt. 1 - Patrick Kilpatrick
To Lose - Monplaisir
Staring At the Void Between Me And The Wall - Monplaisir
Nexus - Monplaisir
YMIY - Demoiselle D
Aimer, c'est ce qu'il y a de plus beau - Monplaisir
Calamity Kick - Monplaisir
Delicate - Monplaisir
This is Not a Joke - Monplaisir