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b. 730

composition: Op. 31, Scherzo in B♭ minor

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In A one can see that Chopin started writing the g quaver as a.

category imprint: Corrections & alterations; Source & stylistic information

issues: Corrections in A , Deletions in A , Enharmonic corrections

b. 734

composition: Op. 31, Scherzo in B♭ minor

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In the main text we add cautionary flats before B and b.

category imprint: Editorial revisions

b. 757-769

composition: Op. 31, Scherzo in B♭ minor

..

In the main text we add cautionary flats before the G-g octaves in b. 757, 761, 765, 767 and 769. The accidentals were added also in GE2 (→GE3).

category imprint: Differences between sources; Editorial revisions

issues: GE revisions

b. 776

composition: Op. 31, Scherzo in B♭ minor

..

The second note from the top of the R.H. chord is written in A slightly too low, so it could be interpreted as c2. That inaccuracy probably misled the engraver of FE, since the dot extending that note is placed – contrary to the rule – at the pitch of c2, and the small blackenings present in that edition may be traces of correction of that note. 

category imprint: Graphic ambiguousness; Source & stylistic information

issues: Inaccuracies in A