We count down the 50 greatest bassists of all time, from string-popping virtuosos to steady session heroes. Photographs used in illustration by AP/Shutterstock; Joseph Okpako/WireImage; Elaine Thompson/AP/Shutterstock “The bass is the foundation,” session legend Carol Kaye once said, “and with the drummer you create the beat. Whatever you play puts a framework around the rest of the music.” A grea