Issues : Cautionary accidentals

b. 62

composition: Op. 25 No 11, Etude in A minor

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In GC (→GE1) there is no  before f3 at the beginning of the bar.

category imprint: Differences between sources

issues: GE revisions , Cautionary accidentals

b. 85-86

composition: Op. 25 No 11, Etude in A minor

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In GC there is no  raising d1 to d1, which is a patent oversight, corrected in GE.

In GC and GE2 (→GE3) there are unnecessary sharps in these bars: in GC before d2 at the beginning of the 3rd and 4th groups of semiquavers in bar 86, while in GE2 (→GE3) before d in the 2nd group in bar 85. 

category imprint: Interpretations within context; Differences between sources

issues: Accidentals in different octaves , GE revisions , Cautionary accidentals , Errors of GC