Is there any way to implement pure tuning in Viruses prior to C? Is it physically impossible? Or is it simply a matter of coding but the machines are no longer supported? I have a Virus Rack, and would like to try pure tuning, but I am not going to pay the going rate for a C just to get it. I am looking into writing a kind of pure tuning program that can tell accommodating synthesizers what to do via MIDI, if such a thing is possible, but it will take a while. Thanks for your time.