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b. 145

composition: Op. 31, Scherzo in B♭ minor

..

Just like in b. 13, in the main text we add cautionary flats. The addition was performed already in GE2 (→GE3).

category imprint: Editorial revisions

issues: GE revisions

b. 148

composition: Op. 31, Scherzo in B♭ minor

No markings in A (→FEEE)

Pedalling in FC (→GE)

..

In the main text we include the pedal change added under these bars in FC (→GE).

category imprint: Differences between sources

issues: Authentic corrections of FC

b. 150-151

composition: Op. 31, Scherzo in B♭ minor

No markings in A (→FEEE)

Pedalling in FC (→GE)

..

In the main text we give the pedalling entered by Chopin into FC (→GE) in b. 150-151 and 174-175.

category imprint: Differences between sources

issues: Authentic corrections of FC

b. 152-154

composition: Op. 31, Scherzo in B♭ minor

Slur in bar 154 in A (→FE)

Slur in bars 152-154 in FC (→GE)

Double slur in bar 154 in EE

..

Just like in b. 20-22, in FC the slur was extended by Chopin. The doubled ties in EE are an arbitrary revision, quite frequently applied in that edition. 

category imprint: Differences between sources; Corrections & alterations

issues: EE revisions , Authentic corrections of FC

b. 154

composition: Op. 31, Scherzo in B♭ minor

Staccato dot in A & GE

No mark in FC & FE (→EE)

..

The second octave in this bar is provided in A with a staccato dot (due to smeared ink the mark became distorted, yet, according to us, there is no doubt that the person who wrote it meant a dot). That dot, however, was not reproduced in any of the sources based on A, neither in FC nor in FE (→EE). The reason could have been an oversight or an omission due to the inability to recognize the shape of the mark. GE added a dot most probably by analogy with b. 22 and 46. 

category imprint: Differences between sources

issues: Errors in FE , GE revisions , Errors of FC