wow, i really like this piece. very calming.
listen, this reminds me of a song I heard before; it has the same feeling, and what sounds like the beginning of this: the doors closing, that's what it sounds like to me.
ANYWAY...the song makes me feel like I did when I heard the other. It is called "Monochrome" by Yoko Kanno...probably one of THE best composers in all of Japan (in my opinion), but I'm just saying this song strongly reminds me of it, with its feeling....and without as much vocals. Great job!