Select: 
Category
All
Graphic ambiguousness
Interpretations within context
Differences between sources
Editorial revisions
Corrections & alterations
Source & stylistic information
Notation
All
Pitch
Rhythm
Slurs
Articulation, Accents, Hairpins
Verbal indications
Pedalling
Fingering
Ornaments
Shorthand & other
Importance
All
Important
Main


b. 69-74

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

cresc. in A

FE (→GE,EE)

..

In FE (→GE,EE) the word cresc. was placed clearly earlier than in A on two occasions – at the end of bars 69 and 73. In the main text we reproduce the notation of A.  

category imprint: Differences between sources

issues: Inaccuracies in FE

b. 69-70

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

Accents in A, literal reading

 in FE (→EE,GE1GE2)

No marks in GE3 (→GE4GE5)

Accents in A, contextual interpretation

..

According to us, both the accents of A and the clearly longer  marks in FE (→GE,EE) imply the same – long accents. It is proved by the marks added by Chopin in a proofreading of FE in analogous bars 73-74. 

category imprint: Graphic ambiguousness

issues: Long accents

b. 72

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

e3 in A

g3 in FE (→GE,EE)

..

e3 as the highest note in this bar is probably Chopin's mistake in A, relatively common in the autographs of his works (cf. very similar situation in bar 24). In any case, while proofreading FE (→GE,EE), Chopin changed it to g3.

category imprint: Interpretations within context; Differences between sources

issues: Terzverschreibung error , Errors in the number of ledger lines , Errors of A , Authentic corrections of FE

b. 72-73

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

No tie to d2 in A & EE2

d2 tied in FE (→GE) & EE3 (→EE4)

..

Lack of the tie sustaining d2 in A is most probably Chopin's oversight. The tie was added in a proofreading of FE (inaccurately – the tie in bar 72 at the end of the line was omitted), it is also included in GE. The hold of this note is also indicated by the fingering added by Chopin in FED. In EE2 the tie was overlooked, which was corrected in EE3 (→EE4). 

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Inaccuracies in FE , Errors in EE , Errors of A , Authentic corrections of FE

b. 72

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

Accent in A (→FE,GE) & EE3 (→EE4)

No mark in EE2

..

The accent, omitted in EE2, was added in EE3 (→EE4).

category imprint: Differences between sources

issues: EE revisions , Errors in EE