Op. 2, Variations in B♭ major
Op. 10, 12 Etudes
Op. 11, Concerto in E minor
Op. 21, Concerto in F minor
Op. 22, Polonaise in E♭ major
Op. 24, 4 Mazurkas
Op. 25, 12 Etudes
Op. 26, 2 Polonaises
Op. 27, 2 Nocturnes
Op. 28, 24 Preludes
Op. 30, 4 Mazurkas
Op. 35, Sonata in B♭ minor
Op. 50, 3 Mazurkas
Op. 63, 3 Mazurkas
Op. 64, 3 Waltzes
Op. 25 No 4, Etude in A minor
The last dyad in the bottom voice seems to be a third in A, as the bottom note is written slightly too low. The visible in FE traces of correction prove that it actually misled the engraver and it must have been corrected in print.
Compare the passage in the sources »
category imprint: Source & stylistic information
issues: Inaccurate note pitch in A, Authentic corrections of FE
notation: Pitch