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b. 45

composition: Op. 10 No 5, Etude in G♭ major

..

GE1 has a  before the topmost note of the last chord. This quite obvious error was originally also in FE, in which, however, it was corrected in the last proofreading. EE, GE2 and subsequent GE,s also include the correct version. 

category imprint: Interpretations within context; Differences between sources

issues: Errors in FE , GE revisions , Authentic corrections of FE

b. 47

composition: Op. 10 No 5, Etude in G♭ major

d1 in A (→FEEE)

c1 in GE

..

c1 in the chord in GE is an error repeated after the proof copy of FE

category imprint: Differences between sources

issues: Errors in FE , Errors in GE , Authentic corrections of FE

b. 50-54

composition: Op. 10 No 5, Etude in G♭ major

Chords with g in A

No g in FE (→GE,EE)

..

Chopin removed the lower notes of the chords on the 2nd and 3rd quavers in bars 50 and 54 while proofreading FE (→GE,EE).

category imprint: Differences between sources; Corrections & alterations

issues: Authentic corrections of FE

b. 52

composition: Op. 10 No 5, Etude in G♭ major

e3 in A (→FEGE1,EE)

d3 in GE2 (→GE3GE4GE5)

..

In A Chopin erased the 9th semiquaver and wrote a different one, most probably e3, which is given here by FE (→GE1,EE). In subsequent GE,s the note was arbitrarily changed to d3.

category imprint: Graphic ambiguousness; Differences between sources; Corrections & alterations

issues: Corrections in A , GE revisions , Main-line changes

b. 56

composition: Op. 10 No 5, Etude in G♭ major

..

In EE2 the  raising d1 to dwas omitted.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Errors in EE