Re: undertones, overtones and equaltones

Here is a real challenge for JDL:

Adaptive retuning of Cloches.mid on this page using inharmonic partials for the bells.

http://www.geocities.co.jp/Hollywood/3147/Debussy.html

Don't know if it is possible!

Robert

[Robert Walker:]
>Here is a real challenge for JDL:
>
>Adaptive retuning of Cloches.mid on this page using inharmonic partials
>for the bells.

>http://www.geocities.co.jp/Hollywood/3147/Debussy.html

>Don't know if it is possible!

Hi, Robert. I downloaded that piece, and I can most certainly tune it,
but all my existing tuning files target harmonic intervals. And, from
some of your past posts, I'm wondering if you want a doubling up of
each note (or more than double) - can you clarify?

JdL

< JdL wrote>

> Hi, Robert. I downloaded that piece, and I can most certainly tune it,
> but all my existing tuning files target harmonic intervals. And, from
> some of your past posts, I'm wondering if you want a doubling up of
> each note (or more than double) - can you clarify?

Hi John,

Yes, one would want that, for some of the notes.

I can't imagine how you would be able to do it, but look forward to hearing
it if you do find a way!

These are the most detailed bell partials I've found so far on the web:
http://www.oakcroft13.fsnet.co.uk/pandc.htm

I edited it to make a smaller table with just the recorded partials and leaving out
the theoretical predictions, then used the ones with vol. at least 5 % for the note (or
doublet):

1/1 1201.74 cents 1491.76 cents 1909.27 cents 1910.25 cents 2400.46 cents 2895.49 cents
2896.94 cents 3106.33 cents 3109.37 cents 3671.72 cents

giving 11 notes.

The http://www.oakcroft13.fsnet.co.uk/ has analysis of other bells too, and a freeware
program for analysing bell partials which I have just discovered.

So you can choose any bells from this list:
http://www.oakcroft13.fsnet.co.uk/index.htm
(then choose bell collection)

Robert

[I wrote:]
>>Hi, Robert. I downloaded that piece, and I can most certainly tune
>>it, but all my existing tuning files target harmonic intervals. And,
>>from some of your past posts, I'm wondering if you want a doubling up
>>of each note (or more than double) - can you clarify?

[Robert wrote:]
>Yes, one would want that, for some of the notes.

>I can't imagine how you would be able to do it, but look forward to
>hearing it if you do find a way!

Well... I'm still unclear - wouldn't ALL the notes, not just some, need
to be duplicated? It would be impossible to both tune the piece and do
such a duplication, because the number of channels would be exhausted.
It would perhaps be possible to leave the "base" notes as they are,
and add new sets of notes on other channels (both higher in MIDI note
number and pitch-bent to achieve the desired partial relationship).
This would require extensive modification to my program, however. And,
depending upon the maximum number of simultaneous notes supported by
a given module, that might or might not be a problem.

JdL