A greater schematic approach is generally characteristic for original versions, in this case AI. Lowering some bass notes or doubling them during the works on a piece is characteristic for Chopin – cf., e.g., the Etude in D
major, No. 8, bars 25-26, Etude in D major, Dbop. 36 No. 3, bars 55-59, Waltz in A major, Op. 42, bar 31 and 273, Polonaise in E minor, Op. 26 No. 2, bars 103-104.
See also the note to bar 36.
Compare the passage in the sources »
category imprint: Differences between sources; Corrections & alterations
issues: Accompaniment changes
notation: Pitch