Make no mistake...I feel Jamerson played on the records, based simply on the sound of the bass on those tracks--obviously done by a finger-player using dead strings. Plus, while I can see a lot of people not wanting to defame a dead icon, I'm reasonably convinced that Holland, Dozier, Robinson and the rest are being truthful.
But Babbitt raises some interesting issues.
Plus, I think the only reason this debate has any legs at all (as opposed to, say, Sun Ra claiming he was from Saturn) is, if you listen to the
style of playing, tracks like "Bernadette" and "I Was Made To Love Her" represent a quantum leap over earlier Motown classics like "It's The Same Old Song" or "My Girl."
The earlier tracks--clearly Jameson's work--are simple and funky, and usually involve the repetition of phrases. "Same Old Song," for example, is basically the same pattern repeated over and over. I am not suggesting it was anything less than brilliant. Only Jameson was coming up with these phrases at the time. But it is simple, direct, and to the point.
Suddenly, without any real sign of evolution, Jameson starts "soloing" through songs. "Bernadette," ""I Was Made To Love Her," and many others from the period make no attempt to provide catchy riffs to hold the bottom; rather, they dynamically propel the song along.
This drastic change is style could lend credence to Kaye's claim (aliteration is alluring, isn't it

) that she played on demos that were later re-cut. Jameson, being a tremendous sight and ear player, could have easily copied the lines and added his own personal touch.
Likely? Maybe not. But the difference in Jameson's style between the older and later Motown stuff was like Neaderthal Man being replaced by Cro-Magnon Man--the gradual evolution seen in the line from Java Man to Peking Man to Neaderthal is suddenly obliterated, and we have
homo sapiens. To my ear, the difference in bass styles presents a similar jump. Jamerson probably played the lines...but who taught him?
On the other hand, Kaye claims to have played bass on the Doors' "Light My Fire," which has no bass at all (only foot pedals and/or a special bass keyboard), so maybe she is just full of dung.