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b. 255

composition: Op. 2, Variations, complete

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In AsI and A, there is a  to B (cautionary?) before the last octave in bar 255. In GE (→FE,EE), another one was added, to B1. In the main text we omit these unjustified accidentals.
At the beginning of bar 256, in the manuscripts there is also an accidental only to the top note of the L.H. octave. A natural to the bottom note was added already by GE (→FE,EE).

category imprint: Differences between sources; Editorial revisions

issues: GE revisions , Cautionary accidentals

b. 256

composition: Op. 43, Tarantella

 
 
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In FE (→IE) in the chor of the first beat of RH the bottom  note of the chord - b- must have been overlooked.

category imprint: Differences between sources

issues: Errors in FE

b. 256

composition: Op. 43, Tarantella

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In all the sources redundant  was added before gin RH.

category imprint: Editorial revisions

issues: Cautionary accidentals

b. 256

composition: Op. 42, Waltz in A♭ major

g2 in FE0 (→EE)

f2 in FE & GE

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The version of FE0 (→EE) with g2 as the bottom note of the first of the pairs of the quavers is most probably erroneous. In the base text to FE and in FEG (→GE) Chopin changed this g2 to f2, yet in FE the correction was misunderstood, hence the flat was also copied, which resulted in a f2. Chopin corrected this new error in FEJ. In this situation, the presence of the original version in EE must be considered as a result of an oversight of proofreading or the engraver's inattention. In the main text we give the text written by Chopin's hand in FEG and FEJ.

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

issues: Annotations in teaching copies , Errors in FE , Authentic corrections of FE , Annotations in FEJ , Authentic corrections of GE

b. 256

composition: Op. 21, Concerto in F minor, Mvt I

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There is no  before the top note of the 7th third in A. The patent oversight was corrected already in GE1 (→FEEE, →GE2).

category imprint: Interpretations within context; Differences between sources

issues: Accidentals in different octaves , GE revisions , Inaccuracies in A