Complete tapes of Glenn Gould testing various pianos [From Library and Archives Canada]

0:00:00 - “Studio G test“ [CBC Toronto], undated 0:22:25 - CBC [Toronto] piano test, April 13, 1975 0:50:23 - Piano test at Eaton Auditorium, Toronto, on Steinway No. CD 131 and CD 230, March 11, 1976 1:08:33 - Piano test at Convocation Hall, University of Toronto, March 9 or September 3, 1978 1:41:30 - Orillia Opera House test, November 2, 1981 The following “test tapes“ were made to assess pianos, studio or hall acoustics, microphone placement, etc. During these “sessions,“ Gould played excerpts from a wide variety of music in a very spontaneous fashion. 5:24 - Alban Berg, Piano Sonata Op. 1 32:30 - Mozarts 8th Sonata in A minor, K 310 Source: The Glenn Gould Archive, Library and Archives Canada