James Jamerson played for Motown record label. Motown was a prominent record label during the 1960s and 1970s, known for its contributions to the development of soul, R&B, and pop music. James Jamerson was a highly influential bassist who played on numerous Motown hits, including songs by artists like The Supremes, The Temptations, and Stevie Wonder. His innovative bass lines and unique playing style made him one of the most sought-after session musicians of his time, and he played a significant role in shaping the sound of Motown records.

Larry Graham was the first artist to record slap bass.

Micheal Manring is the correct answer because the statement mentions that the bassist has a unique style based on alternate tunings and accurate technique, which perfectly describes Manring's playing style. Additionally, the statement mentions that he plays on his custom Zon Hyper bass, further confirming that Manring is the correct answer as he is known for playing this specific bass.

Billy Sheehan has been clocked as much faster than any of the other musicians on this page.

Bill Wyman used a fretless on recordings long before Jaco or Jack, having used it for numerous Rolling Stones tunes.

after breaking the strings on numerous Danelectro Longhorns, Entwistle played "My Generation" with Fender Jazz.

Bill Black is the correct answer because he was the original bassist for Elvis Presley. He played bass for Elvis during the early years of his career and was a member of the famous rock and roll band, The Blue Moon Boys. Black's distinctive bass playing style contributed to the sound and success of Elvis's early recordings, including hits like "Heartbreak Hotel" and "Hound Dog." He played with Elvis until 1958, after which he pursued a solo career.

Ampeg is the correct answer because they were the first company to produce a fretless bass guitar. Ampeg introduced the fretless bass in the 1960s, pioneering the design and making it available to musicians. This innovation allowed bass players to explore new tonal possibilities and techniques, such as sliding between notes and creating smooth glissando effects. Ampeg's contribution to the development of the fretless bass made it a significant milestone in the history of bass guitar manufacturing.

Jack Bruce has used the Fender VI, Warwick Thumb, and Danelectro Longhorn basses professionally, but he has not used the Gibson EB-0 bass professionally.