Well, I don't write TAB but I'll do my best to help. The tune is in Eb minor. The line starts on B flat (8th fret, D string) as a pickup (last 8th note of the bar). Every note thereafter - except for the last two - is on the beat (one per quarter note in each bar). So, Eb (8th fret, G string); Db (6th fret, G string); Bb (8th fret, D string). Then there's a slight slide to the low Eb (4th fret, B string on a five string bass); Gb (2nd fret, E string); Ab (4th fret, E string; Bb (6th fret, E string); Bb again (last sixteenth note of the third beat in the bar), Eb (4th fret, B string - played on the last 8th note of the bar). So yeah, the bass would have been detuned for the original recording.