Air's music really comprehend the mood ( I never played the game, but the music is so, so...), it helps to tone the sorrow, yet somewhat hope full situation. Any kind of media requires ( except images, pictures)music to lift it up to a new degree, I don't think any of us could read and listen through a paragraph of sorrowful symbols, and yet not cry a little. For air, it is not for the porn, it is for the graphic, the plot, and, the music...
Oh yeah, could anyone post the OST of Air, I just couldn't find it anywhere( I'm in USA, and I don't speak Japenese, and, my platform is in English...)...