The part of the L.H. in this bar in AG is missing. Possible explanations:
1. Chopin forgot to write the part of the L.H., the same as in all the remaining sources.
2. Chopin considered this bar a beginning of the section written in an abbreviated manner with letters from a to i (bars 22-30), so he wrote only a different part of the R.H. In such a case, the part of the L.H. is analogous to bar 21. Such a solution is present in CX. We respect this variant in the editorial version.
Compare the passage in the sources »
category imprint: Differences between sources; Source & stylistic information
notation: Pitch