FED
Main text
A - Autograph
GE - German edition
GE1 - First German edition
GE2 - Later impression of GE1
GET - Toruń copy
FE - French edition
FE1 - First French Edition
FED - Dubois copy
FEJ - Jędrzejewicz copy
FES - Stirling copy
FEFr - Franchomme copy
EE - English edition
EE1 - First English Edition
EE3 - Later impression of EE1
compare
  b. 26

No dynamic indications in A (→GEFEEE)

 written into FED, FEJ and FES

 in FEFr

Having already published the Nocturne, Chopin apparently changed his concept of dynamics for the returns of the main theme. This finds proof in identical corrections made in all the three extant teaching copies, both in this and the previous bar. There are even more radical changes notated, with similar determination, on the 3rd appearance of the theme in bars 45-46 and 50 & 52.

The additions and alterations notated by Franchomme in FEFr seem to define - despite certain differences - a very similar change of dynamic concept, here and on the 3rd return of the theme. 

Compare the passage in the sources »

category imprint: Differences between sources; Corrections & alterations

issues: Authentic post-publication changes and variants

notation: Verbal indications

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Original in: Bibliothèque Nationale de France, Paryż