Good News
hardware:  
Apple PowerBook G4/OSX
software:  
RTcmix,
max/msp ([rtcmix~])
Boy, Beth Griffith is a wonderful singer! I really enjoyed doing this
for the
North Carolina Computer Music Festival,
many thanks to Rodney Waschka for getting me involved. Plus I got a kick
out of Kessel's book.
Beth has done the piece several times since the festival, and it generally
works pretty well. I need to find a way to make it more "turnkey"
to operate, though. Right now I pretty much have to be the laptop
performer on the scene for it to happen.
The performance interface software for this piece can be downloaded
here.