First of all, I've always had an affinity for Asian ladies (especially Japanese), so I'm enjoying that video in about all ways possible! (Boy are they good too!)
As for that bottom keyboard, it's a Roland RD700! Check out about 1:08 into the video.
Heh, I still remember mine! It was a too expensive Turtle Beach MIDI interface (with onboard General MIDI sounds!) that I used to help Greg betatest Cakewalk v1.0 with!
I'd watch some of the shows, but I'm too busy doing hallucinogens and listening to Jean-Michel Jarre and watching 4k trippy screen-savers.
(Or is that just me? ?)