"The deep ambient noise"
There's this thing I should have seen coming.
From the comments on my game:
... the deep ambient noise fits the art and mood very well!
... the ambient sound serves the mood well.
The thing is, I didn't listen to the music once I exported it from LMMS. I did some last minute volume tweaks, and put it in the compo version. So it ended up sounding like an ambient hum.
So. I revamped the music for the post compo version. Here it is:
https://www.youtube.com/watch?v=QxRVP3g2y3s