The authenticity of the variant written in FEH seems to be highly likely (like in the case of the remaining variants in this movement of the Concerto – see e.g. bar 29 or 57). It is noteworthy that this version, although it does not strictly correspond to the orchestral part, results in a smoother combination of bars 63-64 when performed on one piano. According to us, such a subtle and dexterous consideration of the specific nature of the one-piano version's sound clearly points to Chopin being the author of this variant.
Compare the passage in the sources»
category imprint: Differences between sources
issues: Annotations in teaching copies, Authentic post-publication changes and variants, Annotations in FEH
notation: Pitch