Re: [tuning] Digest Number 1498

Hi Graham,

> It's easy to get this working with Kyma. Robert Walker says he's
> implemented something like it for meantone in FTS, I don't know the
> details.

Yes, in one of the FTS presets.

For anyone who is interested in the details:

In | Options | Presets | Church Organ, variable comma meantone, modulation wheel for range 0 to 1/4.

Using the modulation wheel you can vary the comma between 0 and 1/4.

At one end of the range you will see the scale as:

#mt 1/4 scale 1/1 76.05 193.2 310.3 5/4 503.4 579.5 696.6 25/16 889.7 1007.0 1083.0 2/1

and at the other end:

#mt 0 scale 1/1 2187/2048 9/8 32/27 81/64 4/3 729/512 3/2 6561/4096 27/16 16/9 243/128 2/1
(i.e. pythagorean scale)

That's for wolf fifth between G sharp and E flat. You can vary position of the wolf from
Scale... | Select from | Mean-tone...
(and don't need to click the Apply to the New Scale window)

Another preset is:
Guitar, variable comma meantone, + modulation wheel for range 1/5 to 1/3.

Scale will now show, for one end of the range:
#mt 1/3 #min 1/5 #max 1/3 scale 1/1 63.5 189.6 6/5 379.1 505.2 25/18 694.8 758.3 5/3 1010.0
1074.0 2/1

At other end, you see the scale as
#mt 1/5 #min 1/5 #max 1/3 scale 1/1 83.58 195.3 307.0 390.6 502.3 585.9 697.7 781.2 893.0
1005.0 15/8 2/1

Or for wolf between F# and D flat:
1/1 16/15 195.3 307.0 390.6 502.3 585.9 697.7 809.4 893.0 1005.0 15/8 2/1

To change the limits, edit the #min 1/5 #max 1/3 fields to whatever you want as the min
and max value for the comma.

This is specifically set up for mean-tone only.

I did it in response to your suggestion, thanks!

I may well extend it to other scales, so that one can select any pair of scales
with the same number of notes, and vary from one to the other using modulation
wheel, and also extend it so that one can use other methods to morph the
scale.

Robert