I found this very difficult but I really enjoyed it. I think split paths in level 1 is too much complexity, and I think the heal spell should be earlier but I really enjoyed it. The look and sound is great, although please definitely add a volume slider.
I think the music keys should be 4 controls instead of 6 which would also map better to things like controller supprt eventually. I also had a hard time getting my head around the movement, an intro level to practice this stuff would be very helpful.