Extensive listening: The Virtuoso Marcus Roberts

Who's the greatest American musician most people have never heard of? To many people, it's Marcus Roberts.

The Virtuoso Marcus Roberts was the title of a CBS 60 Minutes segment back in 2014.

"Marcus went blind when he was 5 years old. And soon began trying to make sense of life in the darkness. He was unusually curious, and even tore his toys apart just to find out how they worked. Roberts developed a powerful, analytical intelligence, capable of producing music that will move your mind as well as your body. The story of his genius begins with a precious gift from his parents: a piano."

You can read the full transcript here.