In A we can see that the arpeggio sign was initially written as a vertical arc (before the chord and the grace-note head) with one, more visible bend at the top (before the grace-note stem). Chopin then drew a wavy line on the lower part, apparently wanting to avoid any misunderstanding as to the meaning of this symbol (it is even possible that the upper part of the sign was also added later, along with the correction in the lower part). According to the editors, this confirms the equivalence of the two varieties of the arpeggio sign found in Chopin's manuscripts, in which wavy lines evolved over the years into vertical arcs.
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category imprint: Corrections & alterations; Source & stylistic information
issues: Arpeggio – vertical slur
notation: Ornaments