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. 21, Concerto in F minor, Mvt I
The 
indication, appearing in the editions, seems to be completely accurate after a few-bar-long crescendo and could have been accepted by Chopin. However, it is most probably only a result of a misinterpretation of A by the engraver of GE1. See also bar 249.
Compare the passage in the sources »
category imprint: Differences between sources
issues: Inaccuracies in GE, fz – f
notation: Verbal indications
