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Op. 29, Impromptu in A♭ major

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b. 30

composition: Op. 29, Impromptu in A♭ major

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In A one can see proofs of changes in the notation of the 5th quaver from f1 to e1. 

category imprint: Corrections & alterations

issues: Deletions in A , Enharmonic corrections

b. 32

composition: Op. 29, Impromptu in A♭ major

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In GE and EE a natural next to the 10th quaver d in the L.H. was added.

category imprint: Differences between sources

issues: GE revisions

b. 38

composition: Op. 29, Impromptu in A♭ major

 
 
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In FE in the accord in the L.H. there is no natural next to d1 and an added b note. Chopin corrected this mistake in all pupils' copies.

category imprint: Differences between sources

issues: Annotations in teaching copies , Errors in FE

b. 45

composition: Op. 29, Impromptu in A♭ major

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We add a cautionary flat before E (after Chopin's sign in analogous bar 37)

category imprint: Differences between sources; Editorial revisions

issues: GE revisions

b. 48

composition: Op. 29, Impromptu in A♭ major

 
 
 
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The inaccuracy of notation in A stems from the later addition of the 1st small note g1 by Chopin. The version of EE may be an authentic, alternative correction of the version matching the original notation of A (cf. similar shape of melody in Nocturne in B minor Op. 9 No. 1, bars 3 and 73).

category imprint: Graphic ambiguousness; Differences between sources; Corrections & alterations

issues: Corrections in A