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. 11, Concerto in E minor, Mvt I
The long accent in bar 137 is Chopin's well thought-out decision – visible traces of corrections (erasures) suggest that the composer initially wrote a 
mark leading to the chord in the next bar. The orchestral parts are also provided with an accent in bar 138 (violins and cellos) or indeed a (double-basses).
Compare the passage in the sources »
category imprint: Corrections & alterations; Source & stylistic information
issues: Long accents, Corrections in A
notation: Articulation, Accents, Hairpins