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Date: | Tue, 19 Jul 2016 15:20:53 +0200 |
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On 19 Jul 2016, at 12:00 AM, Peter <[log in to unmask]> wrote:
> The odd thing with the Korg is meantone; the OT-120 has 2 modes: "Eb"
> and "D#"; how these correlate to, say, quarter-comma meantone I can't
> say.
As part of the process of tuning the meantone pitches, the note D#/Eb
has to be tuned and there is a choice. It can either be tuned as an
E-flat, in which case it is tuned pure (i.e. beat-less) to the G
already tuned, or as a D-sharp, in which case it is tuned pure to the
already tuned B. The same is true of the other "black notes". The
usual choice is C#, Eb, F#, G# and Bb; but each can be tuned to the
other enharmonic if the harmony demands it. (For example, one
obviously needs an E-flat in the keys of E-flat or C minor, but a
D-sharp sounds better in E Major or E minor) It was to avoid having
to make this choice that keyboards with split "sharps" were made,
thus making both options simultaneously available; but this opens
another can of worms!
David
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