thank you for playing the game and enjoying it. And as the composer, I am happy that you specifically liked the music.
In case you are wondering, the synth pad is two VSTs layered on top each other - one called NY by Fullbucket, the other one is DSK Ethereal Pads. They are free VSTs. I sampled them down in low quality and then reduced them to mono, to get a low-fi sound that fits the pixel aesthetics more. it also makes the pads fairly dense I think, which is a really nice sound for these kind of pixel style games. There is more audio effects and processing on that, but that is mostly it. The DAW i used is LMMs.
I hope this answers your question.