Calificación
Reparto

Emmylou Harris
Self

Yo-Yo Ma
Self

Sinéad O'Connor
Self

Patti Smith
Self

Suzanne Vega
Self

Shawn Colvin
Self

Ani DiFranco
Self

Rickie Lee Jones
Self

Daniel Lanois
Self

Keb' Mo'
Self

Jane Siberry
Self

Richard Thompson
Self