Mujitsu and Tairaku's Shakuhachi BBQ

I really like Kaze no Uta and have it on a few CDs and think the shakuhachi part of the song would stand well on its own (perhaps with some of the koto riffs added in on the shakuhachi). If nothing else, the level of technical challenge (for me, at least) makes me really want to learn it. Do any of you know of a koto-only recording of the song... one which I could pitch shift to match my 2.8 and then play along with?

Zak