Michael, when you say:
> With this machine you can select to use 8ve. stretching (I never use this
> 'cos I only use it to set 1 x 8ve)
you might keep in mind that octave stretching should start at the
temperament octave and continue throughout the tuning. If you set a
machine "no-stretch" temperament octave, and then try to extend it aurally
to a complete tuning with stretch, the tuning cannot be as even as one
that is designed from the beginning with the correct amount of stretch in
mind. Just look at the tuning curves of any of the more advanced ETDs.
Different degrees of stretch do affect the shape of the temperament octave
as well as the high treble.
-Robert Scott
Ypsilanti, MI
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