It's awful that Dolby has lost two of his main bass players to untimely deaths. Terry Jackson, who brilliantly grooved his behind off on Aliens Ate My Buick, was lost in a plane crash on tour with Reba McEntire's band shortly after his stint with Dolby. I was lucky to score tickets to see Dolby with that band play live in '88, opening for the Zawinul Syndicate of all things. Unforgettable.
Back to Seligman, he is just inestimably creative on Flat Earth... Those rad fills on Dissidents, The Flat Earth is masterful pick playing, Mulu sounds like nothing else. Plus, you never quite know what is sampled/keyboard bass and what is him—I like to think his sounds made up the bass part of White City and Hyperactive, but it's hard to tell what went on behind the scenes.
By the way, am I the only one who isn't quite sure where the ONE is in Hyperactive? I'm convinced there's a wormhole in there somewhere.