The cautionary flat before d
2 was added in GE (→FE→EE). In a similar context, Chopin would frequently write signs specifying the pitch of a note, compliant with the key, after previously raising it an octave lower. Therefore, it cannot be excluded that the addition comes from the composer.
The flat before the d minim in the L.H. was added by us.
Compare the passage in the sources »
category imprint: Differences between sources; Editorial revisions
issues: Cautionary accidentals, Authentic corrections of GE
notation: Pitch