Issues : Omission of current key accidentals
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b. 476-477
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composition: Op. 21, Concerto in F minor, Mvt III
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In A, Chopin wrote only two naturals in this place – before the 2nd quaver in bar 476 and before the bottom note of the 1st quaver in bar 477. The missing signs before the 1st octave in the L.H. in bar 476 are the only case in the entire fragment in which the first occurrence of a note in a bar was not marked correctly. It probably indicates that the part of the L.H. was written after the passages in the R.H., hence the first b Chopin encountered while writing was the 2nd quaver, written on the bottom stave. Considering that the category imprint: Interpretations within context; Differences between sources issues: Accidentals in different octaves , GE revisions , Omission of current key accidentals , Errors of A |
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b. 482
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composition: Op. 11, Concerto in E minor, Mvt III category imprint: Interpretations within context; Differences between sources issues: EE revisions , Accidentals in different octaves , Inaccuracies in FE , GE revisions , Omission of current key accidentals , Errors repeated in GE |
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b. 486
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composition: Op. 11, Concerto in E minor, Mvt III
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In the L.H. part, FE has only 2 naturals: before c at the beginning of the bar and before g in the 2nd quaver. The missing naturals were added both in GE and EE. A natural before the 3rd quaver was added also in FED and FEH. category imprint: Interpretations within context; Differences between sources issues: Annotations in teaching copies , EE revisions , Annotations in FED , Accidentals in different octaves , GE revisions , Omission of current key accidentals , Annotations in FEH |
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b. 493
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composition: Op. 31, Scherzo in B♭ minor
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In A (→FC→GE1, →FE→EE1) there is no accidental before the last crotchet in the R.H. It must be a mistake, cf., e.g. analogous b. 497. Oversight of an accidental necessary for writing a note belonging to a currently valid key is one of Chopin's most frequent mistakes. A natural was added only just in GE2 (→GE3) and EE2 (→EE3); it was also added in FESf. category imprint: Interpretations within context; Differences between sources issues: Annotations in teaching copies , EE revisions , GE revisions , Omission of current key accidentals , Errors of A , Errors repeated in GE , Errors repeated in FE , Errors repeated in EE , Annotations in FESf |
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b. 494
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composition: Op. 31, Scherzo in B♭ minor
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In A (→FE,FC→GE1) there is no category imprint: Interpretations within context; Differences between sources issues: EE revisions , GE revisions , Omission of current key accidentals , Errors of A , Errors repeated in GE , Errors repeated in FE , Errors repeated in EE |
is valid also for the topmost note in the L.H., all necessary naturals were added already in 
1 to c1. The patent inaccuracy was corrected in 
lowering e2 to e
2. A flat was added already in