Issues : Omission of current key accidentals

b. 276

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

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Same as in analogous bar 128, in A there is no accidental before the crotchet in the middle voice. It must be an oversight, corrected already in GE1 (→FEEE, →GE2).

category imprint: Interpretations within context; Differences between sources

issues: Omission of current key accidentals , Authentic corrections of GE , Last key signature sign , Inaccuracies in A

b. 277

composition: Op. 2, Variations, complete

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Neither AsI nor A (→GEFE1,EE,FESB) include an accidental to the 7th semiquaver. The F major chord underlying this place is, however, thanks to the C7 chords present directly both before and after it, temporarily the tonic, which requires the use of e2, and not e2. This conclusion is also supported by bar 285 – in the orchestral version of this phrase all sources contain e2(3). The mistake, patent in this context, was, however, corrected only in the stage of proofreading FE2, probably at Chopin's request.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , GE revisions , Omission of current key accidentals , Authentic corrections of FE

b. 290

composition: Op. 16, Rondo in E♭ major

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As in bar 274, there is no  raising a​​​​​​​2 to a2 in FE (→EE1). The obvious error was amended in GE and EE2 (→EE3).

category imprint: Interpretations within context; Differences between sources

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

b. 291-292

composition: Op. 44, Polonaise in F♯ minor

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Like in b. 58-59, in FE1 there is not a single  raising g to g (in various octaves). The mistake was corrected in FE2 and EE.

category imprint: Interpretations within context; Differences between sources

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

b. 293

composition: Op. 44, Polonaise in F♯ minor

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In the sources there is no  over the  mark, which is a patent inaccuracy, certainly repeated after [A].

category imprint: Interpretations within context

issues: Omission of current key accidentals