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 1, Etude in A♭ major
The missing 
both in AI and EE is only one of numerous proofs for a less accurate elaboration of the Etude in these sources.
In CDP there are no performance indications until bar 19, which is certainly a result of the copyist's inattention or his conscious decision, being a result of, e.g., hurry.
Compare the passage in the sources »
category imprint: Differences between sources; Corrections & alterations
notation: Verbal indications
