In today's show, two stories of inspiration - one sweet, one sinister. <a href="http://www.youtube.com/watch?v=89sFEuEuTYM">Cellist Yo-Yo Ma appeared on Sesame Street </a>in the late 1980s, expertly accompanied by a trio of honkers and dingers. Three-year-old Matthew Zalkind was watching, and fell in love with the cello right then and there. Now all grown up, he plays a Faure trio at Marlboro. And Igor Stravinsky's frightening run-in with a gang of Nazi thugs in 1932 fueled the dark emotions of his Symphony in Three Movements. We'll hear a performance by the New York Philharmonic.