The Cyndustries List

Hi, Ive never used a analog VCO before I would like some more info please ,I have a virus synth module i trigger the sounds from that yousing a midi keyboard ,does the Zerooscillator work in the same way, or do you need to connect it to a analog keyboard ,in other words does it have built in sounds or is it a sound altering device ,or is it a stand alone unit and if so how do you youse it in that way ? thanks .