Issues : Omissions to cancel alteration
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b. 15
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composition: Op. 2, Variations, complete
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The category imprint: Interpretations within context; Editorial revisions issues: Omissions to cancel alteration , Errors of A , Errors repeated in GE , Errors repeated in FE , Errors repeated in EE |
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b. 16
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composition: Op. 29, Impromptu in A♭ major
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In A (→GE1) and EE1 there is no natural restoring g on the last quaver. It is undoubtedly Chopin's oversight, one of his most frequent ones. The sign was added in GE2 (→GE3→GE4) and EE2. It can be assumed that also the natural in FE was added during the proofing (it is absent in the analogous bar 98). category imprint: Interpretations within context; Differences between sources issues: Omissions to cancel alteration |
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b. 16
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composition: Op. 44, Polonaise in F♯ minor
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In the main text we include the naturals before the penultimate R.H. octave (d3-d4) present in GE and EE. The absence of those accidentals in FE suggests that they were not included in the manuscripts and that the revisers of EE and GE added them while correcting an overlooked cancellation of alteration (typical of Chopin). category imprint: Interpretations within context; Differences between sources issues: EE revisions , Omissions to cancel alteration , GE revisions , Errors repeated in FE |
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b. 17
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composition: Op. 29, Impromptu in A♭ major
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On the 8th quaver in A, FE and EE1 there is no natural reinstating f1. Chopin corrected his mistake in FEJ and FES. The sign was also added in GE and EE2. category imprint: Interpretations within context; Differences between sources issues: Omissions to cancel alteration |
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b. 17
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composition: Op. 10 No 2, Etude in A minor
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In CLI there are no naturals returning c2 and e2, nor the sharp raising g1 to g category imprint: Interpretations within context; Differences between sources issues: EE revisions , Errors in FE , Omissions to cancel alteration , GE revisions |
restoring b
1 in the 2nd half of the bar is absent in all sources. It must be Chopin's mistake, one of his most frequent errors.
1. The second error – lack of the 
before e2 – remained unnoticed also in