Dr. Martha Summa-Chadwick nerds out about the power music has to affect the quality of life. She is the Executive Director of Music Therapy Gateway in Communications, Inc . She joins us today to talk about how music is an ancient language that can help patients suffering from autism, PTSD, and Parkinson's disease. MTGIC has a free concert, Quartet for the End of Time , coming up November 18th, and Dr. Summa-Chadwick is also telling us composer Oliver Messiaen had a neurological disorder,