Well… that’s why I started with the question… Does the md’s midi-sample-dump function work to feed rhythm.
because I am sure you can swap samples between machinedrums that way… and I read about some dude who used this vintage sampler to edit his samples and dumping them into machinedrum after…

If a machinedrum can do it (not sure it can WHILE PLAYING) but that’s not really my end-goal… An octatrack should be able to do it as well (might not realtime… but like you said… option in editor will be fine enough)

I do like your pi suggestion… that would also work for my mc909… or my mv8800 … or…