Issues : Accompaniment changes

b. 33

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

..

A originally had F as the first quaver.

category imprint: Corrections & alterations; Source & stylistic information

issues: Corrections in A , Deletions in A , Accompaniment changes , Bass register changes

b. 50-52

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

Minims g-g1 & f-f1 in A (→FCGE1, →FEEE)

Dotted minims in GE2 (→GE3)

..

Formally speaking, the revision of GE2 is justified – in the "voice" provided with a stem pointing upwards, the bar is incomplete. However, Chopin would rarely enter rests in such situations; an oversight of dots extending minims seems to be highly unlikely due to the fact that the notation of these chords was corrected a few times, including the crossed-out rest on the 3rd beat of b. 51.

category imprint: Differences between sources; Corrections & alterations; Source & stylistic information

issues: Corrections in A , GE revisions , Deletions in A , Accompaniment changes , Changed phrase length