The sources do not give reasons for concluding how the difference in the articulation in the R.H. in the 1st half of the bar occurred. The slur of GC seems to be added by another hand than the majority of the remaining slurs of the Etude, which suggests Chopin's intervention. However, it is only an addition, as the manuscript had not included any articulation indications in this place. The addition of the slur could have been related to the addition of accents in the entire first period, in particular to the three accents breaking the scheme in the discussed bar. Due to this fact, we adopt the slur of GC (→GE) to the main text.
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category imprint: Differences between sources
issues: Authentic corrections in GC
notation: Slurs