Videodisc release of the documentary film produced in 2011.
Special features: deleted scenes; extra interviews.
Aspect ratio 16:9.
Cinematography, Walter Corbett; editor, Michèle Hozer; music performed by Glenn Gould.
Interviewees, Glenn Gould; Cornelia Foss Roxolana Roslak, Petula Clark, Vladimir Ashkenazy.
DVD, NTSC, Region 1; 5.1 surround sound.
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