Maurizio Pollini /
Chopin /
Etude No. 4 in G-Flat Major, Op. 10, No. 5 'Black Keys'
September 5 - 7, 9 & 11 - 16, 1960 in London - Abbey Road Studio No. 1
- ( 1 CD ) Testament SBT 1473
January 20 - 22 & May 15 - 19, 1972 in Munich - Munich Residenz - Herkulessaal
- (17 CD) DG 463 047-2
- ( 2 CD ) DG 463 051-2
- (55 CD) DG 477 8167 - 00:01:39