You'll know I'm a rookie bass player when I say that, to my knowledge, I have never heard Jaco Pastorius. I figured he was some kind of jazz / lead bass / "out in front" / featured artist kind of bass guru, and you went to see him play 128th notes with his teeth or something. I was just reading something, and I learned that he played with "Joni Mitchell", who I have definitely heard of, and love. She is one of the few people I would call a genius. When I read this, It sounded like Eddie Van Halen playing with Bob Dylan or something. I'm gonna have to check this guy out. You would have to be a "bass player" and be able to edit your playing to complement Joni Mitchell's band, I would think.