That's remarkable. Who was that? I've never seen that style of playing before.
Pat Metheny, while not the technician is an amazing composer and improviser:
http://www.youtube.com/watch?v=WzVa_X9zKcc
Here Richard Bona plays bass almost like a guitar. His playing is on par with Stanley Clark, Ron Carter, and Jaco Pastorius.
http://www.youtube.com/watch?v=ZAs3Fm9D7HA