I’ll have to play with Stairway, thanks for the reference! I’ve read the Electronotes article, it’s a really good read. Per Tom Wiltshire’s page, the Siel Mono predated the Oberheim as the first pole mixing synth filter. But certainly the Oberheim stuff was more popular and polyphonic.
The Pole Dancer is a bit unique in that it decouples the filter from the filter mode. I’d think this would be easy to do for other VCV Rack filter modules, I just haven’t seen it. It also would be difficult in eurorack to give that level of control. I’ve got ideas on how it could get close in hardware eurorack but it isn’t as, uh, “flexible” as the Pole Dancer.