ND3 has probably been my favorite purchase in the past year! Love the way it sounds. I’ve mostly been experimenting sampling my live playing into it as opposed to sequencing it (I’m going for loose, ambient textures normally)
Each track on the ND responds to a MIDI channel, so you could use the MIDI arp on 6 different channels to affect pitch for that track. It also can play notes on a global channel, could be cool to some combination of the two… e.g. use MIDI arp on global channel to bounce between different hi-hat sounds and then use individual channels for the rest of the tracks.
Lots of possibilities, enjoy