When i was in japan a couple of years ago i had the chance to visit Ghibli studios and meet the director of this video, "piece", when i was there. His name is Yoshiyuki Momose, and has been instrumental in many of Ghibli's shorts. Its funny because he actually disagrees with miyazaki on many things pertaining to animation and film making but the two must have a great respect for each other due to their long time working relationship. Prior to Ghibli Yoshiyuki Momose was one of the co-founders of Mook Animation where Transformers: Animated has been animated.
I wish that you could see this video in HD glory, because when i was shown the work in progress i marveled at the color pallet and beauty of this music video. Yoshiyuki Momose has a wonderfully gorgeous eye for color and animation, and this video certainly reflects it. My congratulations to all who worked on it. Job well done!