The Moon is now making music! : Moon Music
You may have to be a little patient for this to load in:
But notice how the satellite carves out an orbit, and the music is composed based on the surface height being passed over at that moment! Also try "Free Scratch" which allows you to play a single note (click the mouse) or an elongated sweeping melody (click-drag over the moon's surface). How cool is that? The music is eerie and yet kind of self-consistent in a mid-20th century kind of way!