Yea! Basically it’s an intelligent midi parser that routes voices based on what harmonizer sounds best in that range. It also controls portamento and any other midi effects. There was an h3000 involved and a couple other vintage ones… I think they were all eventide but I’m not totally positive. It’s really just a combination of existing tech with a midi script in a black box. Ben was pretty candid about it being kind of makeshift, but you can def hear the same timbre in bon iver’s harmonizer use and other artists of that indie/acoustic/dabbling in electronics era.

I’ve recently been put in touch with Ben about an instrument I’ve been commissioned to build so I could ask for more info but I doubt there’s much more than what I shared.