well, i downloaded the manual for the k2000, and from what i can gather, the shaper filter that my friend told me about is not actually a filter at all, but a waveshaper not very far removed from pd's [cos~] object, but with a couple of important tweaks.
sounds ok. think i will string a few together and detune them and make some funky envelopes...but for the moment here is the basic patch if u care.