Kashiwa Daisuke - Stella (http://www.youtube.com/watch?v=ByD5ORT6Mcw#ws)
I found this from the related videos on a Nujabes song I was listening to and holy shit. This is a masterpiece. Please listen to the entire thing and you will not regret it.
Interesting, I liked it, but I didn't like all the little spots where the music just stops for less than a second. That made it feel like a CD was skipping, and I wanted to hit my computer lol.