This song, which evidently was out of print, is now back in print!
There is a "catch.". It is included in an "album" of sheet music available from Amazon Japan for around $40 US. The "catch" is that postage to the US will cost you another $40! But if you could get a couple of friends who also wanted a copy, that could reduce your per copy shipping price.
http://www.amazon.co.jp/gp/switch-langu ... uage=en_JP
You must first open an account with Amazon Japan, and then place your order. It is a little interesting figuring which buttons you need to hit to do things like enter an international address, but if I figured it out, anyone can.
I ordered a copy late last Wednesday evening, it shipped late Friday, and arrived at my house today via DHL.
I am in flute heaven right now!