Glenn Gould /
Bach /
Well Tempered Clavier Book II - Prelude and Fugue No. 21 in B-Flat Major, BWV 890

January 10 - 11, 24 & 31, 1971 in New York City - CBS 30th Street Studios
- ( 2 LP ) CBS Japan SONC-10471/2
- ( 1 LP ) Columbia M 30537
- ( 1 LP ) Columbia MS 30537
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- ( 2 CD ) CBS Japan 46DC 5249-50
- (44 CD) Sony 88691961142
- (80 CD) Sony 88697147502
- ( 1 CD ) Sony 88697148142
- ( 4 CD ) Sony 88725412692 - 00:04:13
- (81 CD) Sony 88875032222
- ( 2 CD ) Sony SM2K 52603 - 00:04:02
- ( 1 CD ) Sony Japan SICC-651
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- ( 4 SA ) Sony Japan SICC-10162/5

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