Where is the promised soundtrack in The Last Door - season one?

[LepricahnsGold]

Steam lists that the soundtrack is now available but there is no 'soundtrack' or 'OST'
folder that shows up in the game's folder. I have reinstalled but no help. The announcement on Steam (by TGK_MGARCIA) says there should be a 'soundtrack' folder in the game's local folder but there is not.