Issues : Errors of A

b. 6

composition: Op. 25 No 1, Etude in A♭ major

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In all manuscripts, FE and EE1 (→EE2) have no flats returning e2 and e1. This inaccuracy, so characteristic for Chopin, was corrected only in GE and EE3.

category imprint: Interpretations within context; Differences between sources; Corrections & alterations

issues: EE revisions , Omissions to cancel alteration , GE revisions , Errors of A

b. 16

composition: Op. 25 No 1, Etude in A♭ major

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In A, CDP, FE, and EE1, there is no  raising d2 to d2. This patent oversight was corrected in GE and EE2 (→EE3). AI also includes the correct notation.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Errors in FE , Errors in EE , GE revisions , Omission of current key accidentals , Errors of A

b. 35

composition: Op. 25 No 1, Etude in A♭ major

g1 in AI, A (→CDP,GE), FE2 & EE

b1 in FE

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The version of FE1 is certainly a mistake, corrected in FE2. Although in A one can see the identical correction – a deleted b1 and added g1 – yet a more profound analysis of the notation reveals that it is only the most visible part of a greater proofreading, including the last 5 semiquavers in the R.H., as Chopin wrote here the figure appearing at the end of bars 37 and 39 by mistake.

category imprint: Differences between sources

issues: Errors in FE , Terzverschreibung error , Errors of A , Deletions in A , FE revisions

b. 37

composition: Op. 25 No 1, Etude in A♭ major

e1 in AI

f1 in A (→CDP,GE), FE & EE

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The version of A and of the later sources may raise stylistic doubts due to the parallel shift of the A major chord to b minor appearing in combination with the previous bar. Therefore, it is presumably Chopin's lapsus calami. However, considering the fact that the composer had a number of occasions to correct his potential mistake (proofreading of three Stichvorlage manuscripts, proofreading of FE, lessons, whose proof are FED and FES), we preserve this version in the main text.

category imprint: Differences between sources; Corrections & alterations

issues: Errors of A