AI
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In bar 5 and in the 1st half of bar 6, in AI, instead of part of the L.H., there is come sopra, which, in this context, undoubtedly refers to bars 1-2 and means repetition of the notation of the first three groups of semiquavers.
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category imprint: Source & stylistic information
issues: Abbreviated notation of A
notation: Shorthand & other