The d2-g2-d3 chord written at the beginning of bar 15 in A is probably the original version of this place. The version of FE (→EE) was most probably introduced by Chopin at the time of proofreading FE. Lack of the tie sustaining a2 in GE may mean that the element was added only in the last proofreading. While proofreading FE, Chopin also took care of returning a2 in the chord on the 4th beat in the bar. In the main text we add a also before a1.
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category imprint: Differences between sources; Corrections & alterations
issues: Authentic corrections of FE
notation: Pitch