Ohhh, haven't listened to the Mad Rat Dead OST, I was mostly viewing it as the composition style not mixing with the instrument qualities but if that was your intention, then don't worry about my comment
I highly recommend the Mad Rat Dead OST it is my all time favorite. I still don't quite get how they make the music sound so deep and rich but trying to emulate its style I think brought me closer.
With more practice, I'm sure I'll be able to make even better pieces!
