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. 4), Sonata in C minor
Op. 50 No. 3, Mazurka in C♯ minor
AI is lacking in a 
restoring f
1 on the 2nd beat of the bar; in turn, it features a superfluous before c1. All the remaining sources contain the necessary sign before f1, yet it is only GE in which there is no before c1.
Compare the passage in the sources »
category imprint: Interpretations within context; Differences between sources
issues: Omissions to cancel alteration, GE revisions, Cautionary accidentals
notation: Pitch
