I got inspired from a miniconcert from the Grieg pianoduo during projectweek in Minerva. In this game you can fly through space and discover the small world and listen to different sounds. This game was made in three days.
You can fly with the arrowkeys and when you get close to an object and a white light appears you can press the spacebar (once) to get a sound. There is no real goal to reach, it is all about the experience.