Those Korg videos. Those came out post 90s?
It does the kind of thing I want, but probably a little too much menu diving for my tastes. I think what I want is a bit more bare bones even: like the sequencer built into the volca, except like 3 of them stacked together, with some more buttons. Even the arp on the volca would be fine with a couple more functionalities and a few more buttons rather than all the settings jammed in 10 positions on a 1 cm diameter knob.