Pitch
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b. 33
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composition: Op. 25 No 4, Etude in A minor category imprint: Interpretations within context; Differences between sources issues: EE revisions , Accidentals in different octaves , GE revisions , Inaccuracies in A |
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b. 33-35
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composition: Op. 25 No 4, Etude in A minor
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GE2 (→GE3) added cautionary naturals before b2 in bar 33, e2 in bar 34 and e1 in bar 35. We give the last two – as justified, according to us – in the main text. category imprint: Differences between sources; Editorial revisions issues: GE revisions |
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b. 37
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composition: Op. 25 No 4, Etude in A minor
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The missing g note on the 2nd quaver is certainly an oversight of the engraver of GE1. The error was corrected in GE2 (→GE3). category imprint: Differences between sources issues: Errors in GE , GE revisions |
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b. 46
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composition: Op. 25 No 4, Etude in A minor
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In all sources, except for GE and EE2 (→EE3), there is no category imprint: Interpretations within context; Differences between sources issues: EE revisions , Omissions to cancel alteration , GE revisions , Errors of A |
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b. 49
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composition: Op. 25 No 4, Etude in A minor
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The chord with the span of tenth on the 4th quaver is certainly a mistake of the engraver of GE1, corrected in later GE. category imprint: Differences between sources issues: Errors in GE , Terzverschreibung error , GE revisions |
lowering e to e
. This patent inaccuracy was corrected in 
returning g1 in the 3rd chord in the R.H. It is a characteristic for Chopin, patent inaccuracy (in analogous 
