Glenn Gould - Prokofieff, Piano Sonata No. 7 in B-flat min: I Allegro inquieto. Andantino (OFFICIAL)

Sunday Concert: Music In The USSR, January 14th, 1962. Serge Prokofieff, Piano Sonata No. 7 in B-flat major . Gould appears as performer and commentator, tracing the development of style in Russian music.