Aaron Funk often uses an old, non-working (makes no sound but still sends midi) Machine Drum to sequence too, by the way. He mentioned it in an interview at one point, and I saw it in the bottom corner of a video he did to tease his Traditional Synthesizer Music album about a year ago. That may be it. Then again, Aaron makes it his personal mission to push any gear well beyond that of anything we “mere mortals” would come up with