So a couple of months back, I had a visitor to my site who was nice enough to provide me with the Hishoku no Sora piano version that he produced from a transcribed MIDI source. And it sounds pretty accurate to the one played on the anime. Enjoy.

(Sorry, comments have been disabled on this post as comments have become pushy, violent, and aggressive, which I have duly deleted. Thanks for ruining it for everyone else.)