Calificación
Reparto
Bryn Terfel
Self (archive footage)
Cecilia Bartoli
Self (archive footage)
Anne Sofie von Otter
Self (archive footage)
José Cura
Self (archive footage)
Simon Keenlyside
Self (archive footage)
Agnès Letestu
Self (archive footage)
Dmitri Hvorostovsky
Self (archive footage)
Yvonne Naef
Self (archive footage)
Verónica Villarroel
Self (archive footage)
José Martinez
Self (archive footage)
Will Hartmann
Self (archive footage)
Dorothea Röschmann
Self (archive footage)
Diana Damrau
Self (archive footage)
Franz-Josef Selig
Self (archive footage)
Inva Mula
Self (archive footage)
Aquiles Machado
Self (archive footage)
