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AI
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The version of AI, most probably written also in As, was then abandoned still before writing A. Among the hypothetical reasons of the change one can name:
-
avoiding oblique tones of c
1-c and c-c
2;
- diversifying the harmonic progression – semi-tone transitions appear both two bars earlier and two bars later.
Compare the passage in the sources »
category imprint: Differences between sources; Corrections & alterations
issues: Accompaniment changes
notation: Pitch