Issues : Errors in the number of ledger lines

b. 64

composition: Op. 29, Impromptu in A♭ major

 
 
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The version of the 2nd half of the bar in A, FE and EE is rather erroneous, so the change inscribed into FEJ should be considered as a correction. The mistakes in the number of ledger lines are Chopin's most frequent errors.

category imprint: Interpretations within context; Differences between sources

issues: Annotations in teaching copies , Terzverschreibung error , GE revisions , Errors in the number of ledger lines