In A, one can see two more deleted notes between the c3 and b2 quavers; in addition, the not entirely removed stem of the former was left untouched. Consequently, it probably caused the mistake of FE, in which one can see traces of removal of a redundant note, most probably c3, placed between d3 and c3. It is uncertain what the aim of the corrections of A was. Below we present a hypothetical reconstruction of a respective fragment with the removed notes having been revealed: 
. The notation can be explained as follows:
- After d3, the first notes to have been written down were the three 'top' quavers c3-b
2-a2, which means that Chopin wanted to start writing down the roulade without an octave sign already from c3; moreover, it means that he overlooked the c3-b2-d3 motif. - Chopin then changed his intentions as to the end of the octave sign, removed c3-b2, written down without an octave sign, and rewrote them an octave lower, planning to encompass them with an octave sign.
- In that moment, he decided to add the c3-b2-d3 motif, or, which we consider more likely, he noticed that he had overlooked it. Therefore, he removed the 'bottom' b2 he had just entered and the following a2, before continuing with writing, starting from b2.
Compare the passage in the sources »
category imprint: Corrections & alterations; Source & stylistic information
issues: Corrections in A, Errors resulting from corrections, Deletions in A, Authentic corrections of FE
notation: Pitch