Issues : Omission of current key accidentals

b. 29

composition: Op. 10 No 12, Etude in C minor

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In A (→FEEE) there is no natural raising the 14th semiquaver in the bar (from b to b). The inaccuracy was corrected in GE.

category imprint: Differences between sources

issues: GE revisions , Omission of current key accidentals

b. 29

composition: Op. 10 No 6, Etude in E♭ minor

C-c in A (→FEEE,GE1GE2GE3GE4)

C-c in FES & GE5

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In A and the editions – except for one – there are no naturals before the 1st octave in this bar (nor a cautionary  before c2 in the middle of the bar). The harmonic context clearly indicates Chopin's oversight, which is confirmed by his entry in FES. The mistake was overlooked by the revisers until GE5.

category imprint: Differences between sources

issues: GE revisions , Omission of current key accidentals , Last key signature sign

b. 29

composition: Op. 10 No 4, Etude in C♯ minor

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The fact that Chopin heard the E minor key in this bar (and subsequent) is revealed by the lack of  lowering g1 to gin AI and at the same time by the presence of a  of g2 in the 2nd half of the bar.

category imprint: Interpretations within context; Differences between sources

issues: Omission of current key accidentals

b. 29-30

composition: Op. 35, Sonata in B♭ minor, Mvt II

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The notation of accidentals in this passage is inaccurate in the sources, which, however, does not impede the interpretation of the correct text. In GC and previous FE, eight sharps are missing – before fcf1 and c2 in the L.H. and before c2f2c3 and f3 in the R.H. In EE, GE and FE4 the signs were added, but only GE2 includes the fully correct notation.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Accidentals in different octaves , Inaccuracies in GE , Inaccuracies in FE , GE revisions , Omission of current key accidentals , EE inaccuracies , FE revisions , Inaccuracies in GC

b. 30

composition: Op. 10 No 12, Etude in C minor

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In A (→FEEE) there are no flats before the 8th and 16th notes in the L.H. This patent inaccuracy was corrected in GE.

category imprint: Differences between sources

issues: Accidentals in different octaves , Omission of current key accidentals