A Jamerson nugget I'd not noticed before from one of his 2 known interviews (Nelson George, 1983) that, inspired by this thread, just went back and reread on Rick Suchow's fascinating site.
"My feel was always an Eastern feel. A spiritual thing. Take 'Standing In The Shadows Of Love'. The bass line has an Arabic feel. I've been around a whole lot of people from the East, from China and Japan. Then I studied the African, Cuban and Indian scales. I brought all that with me to Motown."
And the stuff about writing baselines bassed on how he heard someone talking or walking. Lots to learn from Jamerson, about his approaches, even now.
I play for fun...Lakland Skyline JO5 & Fender Precision '73