When reading about the MC-4 by Roland I noticed some similarities in operation with the ER-101. (Obviously scrolling through a list of steps and entering numerical values being the most obvious ones). Therefore I was wondering if maybe @odevices might chime in to tell us what inspired him, even if the MC-4 has absolutely nothing to do with it, to create the wonderful sequencer the 101 is. Similar to the already existing thread on the 301.
Interesting, I never thought about that. I thought maybe this? https://buchla.com/251e-quad-sequential-voltage-source/