In this context, the crescendo marking certainly refers to the parts of both hands, hence placing it under the bottom stave most probably resulted from lack of space between the staves in FE or perhaps also in [A] (cf. the indications in bars 324-326). Due to this reason, in the main text we move this indication to between the staves; the change was introduced already in GE3. In GE and EE, the indication was given the form of a standard abbreviation.
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category imprint: Interpretations within context; Differences between sources
issues: EE revisions, Inaccuracies in FE, GE revisions
notation: Verbal indications