In the Chopinesque notation, the articulation markings placed over the part of the R.H. are binding also for the L.H. in this context. Due to this reason, we give this undoubtedly authentic notation of A in the main text. At the same time, it is consistent, since the passage in bars 503-505 also has a slur only over the R.H. On the other hand, the authenticity of the slurs and dots added in GE1 (→FE→EE) cannot be entirely excluded, since such separate markings for the L.H. were also sometimes used by Chopin. The fact that the markings appear at the beginning of the bar and not from the moment of the R.H. passing to the upper stave suggests, according to us, that the additions were performed by the reviser.
In FE, the markings of the L.H. were reproduced with minor inaccuracies in bars 507-508. The irregularities were removed in EE, in which a slur leading to the 1st note in bar 507 was added. The marks added in GE2 in bar 506 cannot be authentic.
Compare the passage in the sources»
category imprint: Differences between sources
issues: EE revisions, Inaccuracies in FE, GE revisions
notation: Slurs