Issues : Errors of A
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b. 10
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composition: Op. 10 No 7, Etude in C major
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In A there is no category imprint: Interpretations within context; Differences between sources issues: Omissions to cancel alteration , Errors of A , Authentic corrections of FE |
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b. 10
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composition: Op. 28 No. 8, Prelude in F♯ minor
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The missing slur over the 1st L.H. figure must be Chopin's mistake. The slur was added in both sources based on A, perhaps not even having noticed its absence. category imprint: Differences between sources issues: Errors of A , FE revisions , Fontana's revisions |
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b. 10-11
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composition: Op. 28 No. 15, Prelude in D♭ major
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In A one can see that the first two quavers in b. 11 were crossed out; they were initially f2-d category imprint: Corrections & alterations; Source & stylistic information issues: Corrections in A , Errors of A , Deletions in A |
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b. 11
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composition: Op. 10 No 7, Etude in C major
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In A Chopin overlooked the category imprint: Differences between sources issues: Errors of A , Authentic corrections of FE |
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b. 11
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composition: Op. 28 No. 7, Prelude in A major
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In A (→FE,FC→GE1) there is no category imprint: Interpretations within context; Differences between sources issues: Annotations in teaching copies , EE revisions , Annotations in FED , GE revisions , Errors of A , Annotations in FES , Annotations in FESch , Errors repeated in GE , Errors repeated in FE |
returning a2 on the 10th semiquaver. This obvious oversight was corrected in 
2. It was also a tie to the former, running from b. 10, that was crossed out. It is probably a correction of an erroneously introduced fragment of b. 14-15.
raising c1 to c
raising d2 to d