THANK YOU that’s it!
Guys, I can’t even explain this is a feature that I’ve wanted for years, and thought I’d always have to do some strange workarounds to get it to work. I have an AX-60, and when you turn the sampler input on, it does a round Robin of 6 notes on the midi out. I used to run the midi out of that into all of my gear with the arp on. It’s like a Ski Jam/Aquatic Ambience style wave sequencing sound, and I’ve used it on a ton of recordings. But I’d have to trig the arp, and essentially do it all by hand playing etc, annoying to ever record or sequence it…it’s what made me start using the MMT-8 in the first place. I’m rambling but being able to chain an arp into polymux, and sequence it all at once is a dream come true. Might not be the intended use of the polymux but goddamn, I’m really really happy about this update.
Also: this might finally make it so I can sequence the AX-60 and S612 in the Sampler In combo mode…retrokits y’all are the best