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. 10 No 12, Etude in C minor
The cautionary natural before f was added in a proofreading of FE (→GE,EE), most probably by Chopin.
A (→FE→EE,GE1→GE2) includes a repeated 
before the 12th note in the L.H. The unnecessary in this context accidental was removed in GE3 (→GE4).
Compare the passage in the sources »
category imprint: Differences between sources; Editorial revisions
issues: Cautionary accidentals, Authentic corrections of FE
notation: Pitch
