Even though we're now again three years later, let me just say that I still frequently visit Knytt Underground's soundtrack:
Most of the tracks are great background music while reading or wanting to calm down.
Of course, there are some upbeat tracks as well, which I listen when running!
Thank you so much, Nifflas, D-fast and the other artists for making this great music. I really love the style, and I hope at some point in time to be able to make music that is similar in flavour.