AT
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In AW, where the previous bar ended with 
and where the introduction of the leit motif had, as it seems, a clearly different character, the missing indication is not surprising. In turn, omission of the indication in EE is probably a result of the copyist's or engraver's oversight, as it must have already been in [A].
Compare the passage in the sources »
category imprint: Differences between sources
issues: Errors in EE
notation: Verbal indications