Page: 
Source: 
p. 1, b. 1-22
p. 1, b. 1-22
p. 2, b. 23-52
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AO - Autograph Oury
AR - Autograph Rotschild
AE - Autograph Eszterhazy
AK - Autograph Krudner
AG - Autograph Gavard
CX - Copy of Autograph Eszterhazy
CY - Copy of Autograph Gavard
CC - Czartoryscy copy
F - Fontana Version
FC - Fontana copy
PE - First Polish edition
FEF - Fontana's French edition
GEF - Fontana's German edition
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AO - Autograph Oury
AR - Autograph Rotschild
AE - Autograph Eszterhazy
AK - Autograph Krudner
AG - Autograph Gavard
CX - Copy of Autograph Eszterhazy
CY - Copy of Autograph Gavard
CC - Czartoryscy copy
F - Fontana Version
FC - Fontana copy
PE - First Polish edition
FEF - Fontana's French edition
GEF - Fontana's German edition
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  b. 21

The general difference in the variants is either dyads on the 2nd and 3rd beats in AO or triads in the remaining sources - resulting from adding a b note to the dyads of AO.
In AE, Chopin originally wrote a crotchet, which, as it seems, he then changed to a minim; however, he did not remove the previously written value. Therefore, CX includes a simplified notation of this place - the minim only. Due to the lack of an unequivocal deletion, in AE we suggest a two-part writing with a minim and a crotchet.    

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category imprint: Differences between sources; Corrections & alterations

issues:

notation: Pitch

Missing markers on sources: PE, AR, AK, AE, FEF, GEF, FC, CC, AG, CX, CY