Bach, Johann Sebastian. Keyboard Practice Consisting of an Aria with Thirty Variations ... [Goldberg Variations, BWV 988]. New York: G. Schirmer, 1938. Annotated
Valen, Fartein. Sonata No. 2, Op. 38. Drammen and Oslo, Norway: Harald Lyche, 1956. Annotated
Glenn Gould in a CBC studio with equipment, directing a documentary, 196?
"The listener today sitting at home behind his massive stereophonic dials ... is ... deciding on things that conductors are supposed to decide.
Even today, the record listener has appreciable powers when it comes to the kind of sound he wants to get from his records, and ... it is by extending these powers that Gould sees the advent of the participating listener.
... the concert hall listener of today, who is essentially a passive participant in whatever is going on, will be replaced by an active or, in the end, a creative listener who will use the recorded performances of artists to produce for himself his ideal performance of any piece of music."15
Glenn Gould, outdoors, April 1974
Living room in Glenn Gould's apartment on St. Clair Avenue West in Toronto, showing the Steinway he used for practicing, January 20, 1983