johnny c
Striker
Most of the Motown Bass parts were played by this little lady
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she also played a lot of the guitar parts too.
At least 95% of them were Jamerson. Carol Kaye did a few sessions if any at all and played on none of the hits. She's a bullshitter going by the songs she claims on her website which are clearly Jamerson.
1) The songwriting-production team of Holland-Dozier-Holland attested to the fact that James Jamerson played on almost every one of their productions, and they never allowed others to produce songs that they had written. Brian Holland signed a notarized affidavit categorically stating that "Bernadette", "Reach Out", "Can't Help Myself", "Keep Me Hanging On", "Standing in the Shadows of Love", "Reflections", "Baby Love", "Back In My Arms Again", "Come See About Me", and "Can't Hurry Love", (all tunes claimed by Carol) were in fact, played by James Jamerson. Most damning was his statement that he had never even heard of Carol Kaye.
2) Smokey Robinson who wrote or produced probably 30-40 percent of Motown's biggest hits also denied that she had any major role in the Motown story, and had no part at all on the songs in question.
3) The performance credit that Carol has pursued with the greatest tenacity over the years is the bass part on Stevie Wonder's "I Was Made to Love Her". Hank Cosby who co-wrote, produced it, and who, in his own words, "was there every step of the way from the writing of the song to the day the 45's were shipped", vehemently denied any participation by Carol Kaye on this recording. Cosby added, "Fifty percent of the song was James Jamerson's bass line. No one played like that but Jamerson." Cosby also signed an affidavit similar to Brian Holland's attesting to Jamerson's performance.