GC
Main text
GC - Gutmann's copy
EE - English edition
EE1 - First English edition
FE - French edition
FE1 - First French edition
FE2 - Corrected impression of FE1
FEJ - Jędrzejewicz copy
FES - Stirling copy
GE - German edition
GE1 - First German edition
GE2 - Second German edition
compare
  b. 154-155

 FE and GE have a double bar line between those bars. In the case of GE, this is definitely a revision (in GC, its base text, the bar line is single). This makes us suspect that the version of FE may also result from a routine editorial revision. Chopin used double bar lines infrequently and never treated them as necessarily connected with the change of key. 

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category imprint: Source & stylistic information

issues: GE revisions, FE revisions

notation: Shorthand & other

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