Paul McCartney on Bill Black's String Bass

I love string bass (electric bass too) and I have been a fan of Paul McCartney since 1964. I have been an Elvis fan since 1957. In the early days of his career, Elvis had a great guitar player named Scotty Moore and a string bass player named Bill Black. The electric bass guitar was not widely used yet (Fender introduced the Precision Bass in 1951), so Bill Black used the old-fashioned acoustic, stand-up bass (still preferred for jazz and orchestras).

Paul McCartney somehow came into possession of Bill Black's old bass and demonstrates it in this video.