In bars 147-148 and 151-152 we suggest a 
hairpin in the main text, in accordance with the notation of A in analogous bars 3-8 – see the note to bars 19-24. The signs added in bars 147-148 in the proofreading of FE (→GE,EE) – probably on Chopin's request – are clearly longer, yet there is no certainty that they were reproduced in full accordance with his intention (inaccuracies in this respect were very frequent and even Chopin himself could have been influenced by the longer signs visible in analogous bars on this page). The longer signs can be, however, considered to be an equal alternative to our suggestion in all four bars.
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category imprint: Interpretations within context; Differences between sources; Corrections & alterations
issues: Scope of dynamic hairpins, Authentic corrections of FE
notation: Articulation, Accents, Hairpins