Most of us rely on sight to parse levels into individual elements, setpieces, segments, and so on. Soundvoyager has sparse visual elements, more as hints and aids than hard elements--what you're really interacting with is a soundscape. How does level design come across when conveyed by sound rather than sight? Additionally, audio game developer CAE Jones speaks on a wide range of topics concerning the development and design of audio games. You can find his games here.