----- Original Message ----- > From: "Ralf Mardorf" <ralf.mardorf at alice-dsl.net> > The East West Choirs sing your lyrics. It's not another Ahhhh or > Ohhhh > sample ;). > > http://www.youtube.com/watch?v=aI5Gg2-mhmU any technical info on that? free software doing the same, research papers (easily available), anything?