This week, hosts Jim DeRogatis and Greg Kot talk with author Erin Osmon about her new book on "heartland rock" and pay tribute to the late Glen Hansard.

Another History Lesson from Professor DeRogatis

Take two nationally respected rock critics, the latest music news, personal commentary, and exclusive interviews and performances, add a huge pile of records old and new, and the result is Sound Opinions, where people who love music can come together.