1 in 
The version of EE1 – here and in bar 53 – was introduced only in print, hence it probably does not come from Chopin. Due to this fact – differently than in bars 35 and 51, 45 and 49, in which the appearing in EE different versions can be very likely considered to come from Chopin – we do not consider this variant to be acceptable. EE2 returned the version of the remaining editions, certainly on the basis of comparison with one of them (it cannot be excluded that it was checked in the base text that it was not a change introduced by Chopin).
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category imprint: Differences between sources
issues: EE revisions
notation: Pitch