A
Main text
AI - Working autograph
A - Autograph
FE - French edition
FE1 - First French edition
FE2 - Corrected impression of FE1
FED - Dubois copy
FEJ - Jędrzejewicz copy
FES - Stirling copy
GE - German edition
GE1 - First German edition
GE1a - Corrected impression of GE1
GE2 - Second German edition
GE3 - Third German edition
GE4 - Fourth German edition
GE5 - Fifth German edition
EE - English edition
EE2 - First English edition
EE3 - Corrected impression of EE2
EE4 - Revised impression of EE3
compare
  b. 48-52

In the autographs there are no sharps returning f1 and f3 at the 6th semiquaver in bar 49. From the harmonic point of view, f1 and f3 could be possible here, yet taking into account the regularity of the figuration's structure, one can assume this omission as a clear oversight. The signs were added – probably by Chopin – in a proofreading of FE (→GE,EE; in GE1 and GE1a there is no  in the L.H.).

In bars 48-52, AI still lacks several accidentals, yet due to the octave doublings between the parts of both hands, it does not lead to any text doubts.
In GE1, before the top note of the 5th semiquaver in the R.H. in bar 49 there is an erroneous  instead of . The error was also in the proofreading copies of FE1, yet it was corrected in the last proofreading.
In FE1 (→GE1,EE2EE3) there is no  lowering f3 to f3 in the 5th semiquaver in bar 51. 

Compare the passage in the sources »

category imprint: Interpretations within context; Differences between sources

issues: EE revisions, Errors in FE, Accidentals in different octaves, Omissions to cancel alteration, Errors in GE, GE revisions, Authentic corrections of FE

notation: Pitch

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