Rubinstein plays Chopin: Polonaise op. 53 (live, correct pitch, HQ)

Arthur Rubinstein plays Chopin's Polonaise op. 53 in A-flat major at the infamous Moscow recital on 1 October, 1964
This version is higher quality than any others I know of on UA-cam
Surely the most greatest performance of this piece known to film - energetic, passionate and bombastic like no other with a deep nationalistic undertone and incredibly sensitivity.
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