Issues : Errors in the number of ledger lines

b. 26

composition: WN 17, Polonaise in B♭ major

a1 in JC

f1 in EF & PE

..

On the 4th quaver of the bar, JC has the anote, similarly as on the second. It is almost certainly a mistake, perhaps of Chopin himself committed in [AI]. Such a type of errors belongs to the most often both in autographs and copies.

category imprint: Differences between sources

issues: Terzverschreibung error , Errors in the number of ledger lines , Errors of JC