Embedded Player William Galison is one of the world's leading harmonica players. He is heard on the theme of the children's TV show Sesame Street, and has also 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. Hear NPR's Liane Hansen and Galison.