IE1
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In A the 
to the bottom note of the 1st L.H. octave is missing. The patent inaccuracy was corrected in GE (→FE,EE,IE). Moreover, cautionary flats were added to the B
1-B octave in bar 15, which we include in the main text.
Compare the passage in the sources »
category imprint: Interpretations within context; Differences between sources
issues: Accidentals in different octaves, GE revisions, Inaccuracies in A
notation: Pitch