William Galison is one of the world's leading harmonica players. His work is heard on the theme of the children's TV show Sesame Street. He also backs up vocalists and has worked on a number of movie soundtracks, including The Untouchables.
Now Galison is teaming with jazz singer Madi Peyroux on a recording entitled Got You On My Mind, to be released in February. He speaks with NPR's Liane Hansen.