石川泰 (#14978)

[CHz]

I checked out a bunch of Purple software albums and couldn't find his name printed anywhere in English, but his given name appears to be Yasushi: http://lists.sakura.ne.jp/lists/natsuiro.html.

There's a musician Tai Ishikawa with the same name who looks like he's a different person: http://sound.jp/anonymousview/.