There is something deeply mysterious about music. Why does it affect us so powerfully? Is it like a language, telling us something? A subtle form of communication? Are there universal interpretations of the emotions that various pieces of music expresses? Or does one need to be part of a music “community” in order to appreciate musical expression? John and Ken explore how music matters with musician and founding member of the Kronos Quartet David Harrington, in a program recorded live at Biscuits and Blues in San Francisco.