The music historian and scholar Ted Gioia returned to the program to discuss his monumental new study of what he describes as the subversive history of music. This book was many years in the making, Gioia originally got the idea to write it during the early 1990's. The author takes us back to the beginning, to prehistoric caves in France, where those early cave artists executed their paintings in the portions of the caves which had the best acoustics. Why would they do that? Because they were