I did a small review on Tumblr (here), but essentially called the game ‘abduction ASMR’ lol. Between the voice acting and the sound design, it was really immersive to just be able to focus on the story and music and make wild guesses on what was going on (ranging from “we're probably like dueling supernatural beings” to “he's a…parasite in my head?” to “oh shit what if -I’M- the brainworm?!?” which was I guess kinda close to what you mentioned in the rambling extras lol).
And this post was how I knew it was on Spotify! I’ve been listening to it there mostly, but there weren’t lyrics offered for the songs. I see them definitely there in the YouTube versions, though! And that’s cool! I love music as much as other artistic media (art and writing), and am always fascinated at the process of creating stuff. I always assumed people sung their own works but using voice samples make sense too, LOL! Thanks so much for replying!