Pitch
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b. 27
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composition: Op. 10 No 12, Etude in C minor category imprint: Differences between sources |
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b. 27
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composition: Op. 10 No 12, Etude in C minor
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The chord in FE – with g2 – may be a result of Chopin's correction introduced in the last phase of proofreading of FE. This would explain the presence of a chord with f2 in GE but not in EE in which either a mistake (?) was committed or a revision was performed. In addition, it cannot be excluded that the revision was implemented both in EE and GE, which seems to be indicated by certain traces suggesting moving the natural before this chord. If this was the case, the version of FE could have been not a result of Chopin's proofreading, yet a simply unnoticed error of the engraver. In the main text we give the undoubtedly authentic text of A, GE and EE. However, we consider the version of FE to be equal, as it could have been an expression of Chopin's final decision. category imprint: Interpretations within context; Differences between sources; Corrections & alterations issues: Authentic corrections of FE |
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b. 29
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composition: Op. 10 No 12, Etude in C minor
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In A (→FE→EE) there is no natural raising the 14th semiquaver in the bar (from b category imprint: Differences between sources |
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b. 29
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composition: Op. 10 No 12, Etude in C minor
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In the sources all notes of the chord on the 4th beat in the bar are provided with accidentals, although in the case of two upper ones it is unnecessary. category imprint: Editorial revisions issues: Cautionary accidentals |
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b. 30
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composition: Op. 10 No 12, Etude in C minor
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In A (→FE→EE) 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 |
raising a
2 to a2. This patent error was corrected in 
