Sunil Iyengar directs the Office of Research & Analysis at the National Endowment for the Arts. Since 2006, the office has produced over 20 research publications and revised the federal definition of what it means to participate in the arts. What does this mean for orchestras, audiences, and musicians? Hard data on some of the thorny issues we think about every day. Here he talks with Mark Clague, professor of music, University of Michigan. Recorded in San Francisco, May 13, 2012.