Any equal temperament.

Choose any interval in cents and stack them so that they line up with
the cycle of 5ths. For example choose 736cents in 44tet. This produces
C=0, G=736, D=273, A=1009, E=545, B=82, F#=818, C#=355, Ab=1091,
Eb=627, Bb=164 and F=900cents. This might seem illogical but this
tuning and others like it can be implemented using a Kurzweil. Bb is
tuned up 364cents and F is tuned up 400cents etc. Any reasonable
interval between 0 and 1200cents can be chosen to begin with. Intervals
can also be stacked against the ascending chromatic scale where C=0,
C#=736, D=273, Eb=1009 etc. Ascending 4ths and the descending chromatic
scale can also be used. This group of four related musical algorithms
can be used to explore or just to have fun. Simply tune the Kurzweil to
the desired tuning and play midi files of pre-existing music. Classical
piano midi files played with a vibraphone timbre sound quite good.

Hi Robert;

I'm going to have to find another way to experiment with this as although we have a Kurz in one of James Sanger's studios in France; I am at present in London, and limited generally to +/- 100 cents and in octaves ratio 2 via Logic Pro 8, or similar.
Otherwise it will be a case of having to program the pitches into exs.

I'll let you know what I find by running the numbers first when I can get some quiet time (probably Tuesday)

On 5 May 2008, at 12:26, robertthomasmartin wrote:

> Choose any interval in cents and stack them so that they line up with
> the cycle of 5ths. For example choose 736cents in 44tet. This produces
> C=0, G=736, D=273, A=1009, E=545, B=82, F#=818, C#=355, Ab=1091,
> Eb=627, Bb=164 and F=900cents. This might seem illogical but this
> tuning and others like it can be implemented using a Kurzweil. Bb is
> tuned up 364cents and F is tuned up 400cents etc. Any reasonable
> interval between 0 and 1200cents can be chosen to begin with. > Intervals
> can also be stacked against the ascending chromatic scale where C=0,
> C#=736, D=273, Eb=1009 etc. Ascending 4ths and the descending > chromatic
> scale can also be used. This group of four related musical algorithms
> can be used to explore or just to have fun. Simply tune the Kurzweil > to
> the desired tuning and play midi files of pre-existing music. > Classical
> piano midi files played with a vibraphone timbre sound quite good.
>
>
>
Charles Lucy
lucy@lucytune.com

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