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


Pitch

b. 150

composition: Op. 38, Ballade in F major

..

A (→GC,FE1) has no naturals before the upper notes of the 4th and 12th semiquaver (b1 and b2). This inaccuracy, characteristic of Chopin, was gradually corrected in FE – the first  was added in FE2, the second in FE3. All these sources have no  before the 7th L.H. note, b. This, however, is not an error because a b in the 2nd R.H. semiquaver is placed with the appropriate  on the lower staff. The remaining editions have a fully correct text.
Moreover, in the main text we remove the  repeated before g1 in the 8th semiquaver, present in all the sources.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Accidentals in different octaves , Omission of current key accidentals , Authentic corrections of FE , Authentic corrections in GC , Inaccuracies in A

b. 151

composition: Op. 38, Ballade in F major

..

A (→FE1) has no accidentals in this bar. Chopin added the overlooked naturals before the 3rd L.H. octave (B-b) in GC (→GE) and FE2 (→FE3). The signs were also added in EE, most probably by analogy with bar 149.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Omission of current key accidentals , Errors of A , Authentic corrections of FE , Authentic corrections in GC

b. 151

composition: Op. 38, Ballade in F major

..

Visible in A are traces of a correction of the L.H. motif which originally sounded: .

category imprint: Corrections & alterations; Source & stylistic information

issues: Corrections in A , Main-line changes

b. 152

composition: Op. 38, Ballade in F major

..

In A (→GC,FE) the  raising b1 to b1 is only written before the 8th semiquaver, and there is no raising b to b in the L.H. Chopin wrote in the latter in GC (→GE), it was also added in FE3 and EE. The notation of the R.H. was supplemented in EE and GE, but only EE removed the then superfluous  in the 2nd half of the bar.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Accidentals in different octaves , GE revisions , Omission of current key accidentals , FE revisions , Authentic corrections in GC , Inaccuracies in A

b. 154

composition: Op. 38, Ballade in F major

e3-c3 in A (→EE) & FE2 (→FE3)

e2-c2 in GC (→GE) & FE1

..

As a result of misinterpretation of the octave sign, GC (→GE) and FE1 erroneously notate the first two semiquavers of the 2nd half of the bar an octave higher – e3-c3 instead of e2-c2. The error was corrected in FE2 (→FE3), most probably by Chopin.

category imprint: Interpretations within context; Differences between sources

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