Linda Ronstadt: The Sound of My Voice is directed by Rob Epstein and Jeffrey Friedman. The film features interviews with Linda Ronstadt, Peter Asher, Jackson Browne, John Boylan, Karla Bonoff, Patricia Casado Lucy's El Adobe, Ry Cooder, Cameron Crowe, David Geffen, Emmylou Harris, Don Henley, Kevin Kline, Dolly Parton, Aaron ...