For decades, collections of CDs and vinyl albums have passed from one generation to another. But it may not be easy to leave your digital music files to posterity. A reporter and an attorney join us to answer a question: "What happens to our iTunes and Amazon libraries when we die?" Later: the story of Eva Tanguay, one of the first "bad girls" of modern entertainment. And: excerpts from a concert by Hot Chip and Gang Gang Dance at Celebrate Brooklyn.