Issues : Authentic corrections of FE
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b. 39
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composition: Op. 10 No 10, Etude in A♭ major
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Despite the fact that the a category imprint: Interpretations within context; Differences between sources issues: Terzverschreibung error , Errors in the number of ledger lines , Errors of A , Authentic corrections of FE |
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b. 41-42
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composition: Op. 10 No 10, Etude in A♭ major
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Different arrangement of the accents in FE (→GE,EE) is most probably a result of Chopin's intervention, although it is uncertain whether the composer moved the more or less accurately reproduced accents of A or only added – in another place – the marks omitted by the engraver. category imprint: Differences between sources issues: Long accents , Authentic corrections of FE |
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b. 42-43
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composition: Op. 10 No 10, Etude in A♭ major
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Lack of the pedal release mark depressed in the middle of bar 42 must be considered as the notation's inaccuracy in this context. The category imprint: Interpretations within context; Differences between sources; Editorial revisions issues: EE revisions , GE revisions , Authentic corrections of FE , No pedal release mark |
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b. 43-45
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composition: Op. 10 No 10, Etude in A♭ major
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The fingering in bars 43 and 45 in the main text – in total six times the 1st finger – originates from Chopin's proofreading of FE (→GE,EE). category imprint: Differences between sources issues: Authentic corrections of FE |
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b. 43
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composition: Op. 10 No 10, Etude in A♭ major
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The longer octave sign in A is almost certainly Chopin's mistake. The error reached GE, where it remained unnoticed, through a proof copy of FE. In the last proofreading of FE (→EE), f category imprint: Differences between sources issues: Errors of A , Authentic corrections of FE |
2-a
minor, Op. 28 No. 8, bars 6 and 20), Chopin's mistake seems to be almost certain here, even due to the pianistic issues. The conclusion is confirmed by Chopin's proofreading performed in this place in 
in 
in 
