In A one can see a pitch correction of the trilled crotchet, from b
1 to a1. Such an uncorrected mistake, consisting in writing the upper second, from which in this context the trill starts, of the main note of the trill instead of the main one, happened to Chopin on a number of occasions, e.g. in the Bolero in A minor, Op. 19, bar 187 and in the Sonata in B minor, Op. 35, the 3rd mov., bar 20.
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category imprint: Source & stylistic information
issues: Corrections in A
notation: Pitch