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Pitch

b. 50

composition: Op. 28 No. 21, Prelude in B♭ major

A1 in A (→FC,FEEE)

A1-A in GE

..

It is difficult to indicate which element of notation of FC could have misled the engraver of GE1. The absence of a respective correction in GE2 proves that the revision was implemented with the aim of detecting manifest errors; compliance with the Stichvorlage was not the main goal.

category imprint: Differences between sources

issues: Errors in GE

b. 55

composition: Op. 28 No. 21, Prelude in B♭ major

c in A (→FC,FEEE) & GE2 (→GE3)

B in GE1

..

The version of GE1 must be erroneous; it was corrected in GE2 (→GE3).

category imprint: Differences between sources

issues: Errors in GE , GE revisions