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Op. 10 No 12, Etude in C minor

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Issues : Cautionary accidentals

b. 26

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

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In A there is no cautionary  before c. The accidental was added in a proofreading of FE (→GE,EE). In the main text we add yet another one before the 7th note (in view of the C in the R.H. chord).

category imprint: Differences between sources; Editorial revisions

issues: Cautionary accidentals , Authentic corrections of FE

b. 29

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

b. 31

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

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A has an unnecessary  before c2 before the chord on the 4th beat in the bar, yet it does not have the necessary  raising f1 to f1. In FE the chord was left without any accidental, which was corrected in EE3. The additions were also performed in GE1 (→GE2), in which the accidentals are placed before each note. In GE3 (→GE4) three upper accidentals were removed, therefore, also the necessary  before f1. An unnecessary revision was also performed in EE4, adding a  before c2. 

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Errors in FE , Accidentals in different octaves , Errors in GE , GE revisions , Cautionary accidentals

b. 34

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

Octave in A

Chord in FE (→GE,EE) 
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The octave in A is the original version, changed by Chopin in a proofreading of FE (→GE,EE). In FE the correction was inaccurately performed – there are no dots extending the added notes, while the  (cautionary) was placed at the pitch of b2. The rhythmic error was corrected in GE and EE and the  was moved before a2 in GE1, yet removed in EE and subsequent GE,s. 

category imprint: Differences between sources; Corrections & alterations

issues: EE revisions , Errors in FE , GE revisions , Cautionary accidentals , Rhythmic errors , Authentic corrections of FE

b. 34

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

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In A the accidentals are before each note of the chord at the beginning of the bar. In FE (→GE1,EE) the  before a2 was omitted. The accidental was added in GE2 (→GE3→GE4).

category imprint: Differences between sources

issues: Inaccuracies in FE , GE revisions , Cautionary accidentals