Tribal Dawn bass tab by James Mobius. song by Mick Karn (R.I.P)
  I made my old bass teacher Steve Cardoza figure this out for me back in the early mid 1980's (sorry Steve) quite a challenge (my ears weren't adequately trained yet) because Mick, as you know, was from outer space, but he got it, I'm not sure how well I ever had it, I've played it to myself over the years, but I just sat down and really listened to the original studio version and realised, whatever I had learned previously, had either d/evolved or been forgotten, or something, so I listened very carefully and re-figured out what Mick was doing, the intial trill, is an approximation, hard to write it down precisely, and I will be doing this in tablature only for now anyway, though I think I may do an instructional video for this one for my Utoob channel
  I don't own any fretless 4 string basses currently (2 five strings, and a 2 string slide bass), but the tab will be for 4 string bass which is what Mick played on this recording originally, a Wal fretless. (oh how I want one, or some of their pick ups so I can build a bass with that sound)
  trill (approximate)
G ---------------------------------------------------------------------------------------------------------------|
D ---15-13-15-13-15-------15-------------------------------------------------13-----------------------------|
A --------------------------------------0-0--------------------12-13------------------14-13------------------|
E -----------------------15-----------------------(9)-9-11------------14-15-----------------------------------|
                          ^muted
     
 
pop
G ---------------0------------------------------------------------------------------------------------------------|
D ---15-15-------------------------------------------------------------------------------------------------------|
A ---13-13--------------5--8-(5)-8---7\-------------------------------------------------------------------------|
E ---------------------------------------------------0------------------------------------------------------------|
               
^implied/muted
   
(^ slap, LR)
one time towards the end there is a variation on the intro phrase:
G ----------------------------14-14------------|
D ---15-13-15-13-15--------------------------|
A --------------------------------------0-0-----|
E -----------------------------------------------|
  I had added a few bits in my head over the years, and left some out, nice to know again what it really is supposed to be. the 1st 9th fret on the E string is muted, the open G string is popped, the 2nd useage of the 5th fret on the A string is implied rhythmically, but may not be actually played, the last note, open E is held (LR = let ring) and slapped with the thumb, or finger, for best effect. a synth washes in an A chord over that, but the bass doesn't actually play A (despite the temptation). and that is the whole tune, there is a long break with sax, also played by Mick of course, along with everything else, I forget if he had drum programming help on that disc at the moment, have to pull out the vinyl to see, and some tribal children chanting, there's a live version you can find on Utoob with guitar, different, but Mick's part is the same, he sings a bit too on it, and it's very cool.
Here you can hear this song via youtube video embedded below, please visit MickKarn.net and buy some of his music, he died tragically young of lung cancer, leaving behind a wife and young daughter who could use your help. Along with Stanley Clarke and Jaco Pastorius, I count Mick Karn as the 3rd element of the holy trinity of electric bass, his importance and originality cannot be overstated, even as people's awareness is woefully inadeqaute for an artist of his stature and significance.