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For Paul G. Hjelstad.

🔗robert thomas martin <robertthomasmartin@bigpond.com.au>

5/7/2008 10:13:52 AM

The formula for converting ratios to cents: c=(1200/log2) multiplied by
log r. (or c=3986.313714 multiplied by log r where r is the decimal
equivalent of the ratio and c is the number of cents). You might
already know this but others may not.

🔗Carl Lumma <carl@lumma.org>

5/7/2008 10:17:52 AM

At 10:13 AM 5/7/2008, you wrote:
>The formula for converting ratios to cents: c=(1200/log2) multiplied by
>log r. (or c=3986.313714 multiplied by log r where r is the decimal
>equivalent of the ratio and c is the number of cents). You might
>already know this but others may not.

Robert,

This sort of thing is prerequisite for this list. It's acceptable
to ask about such a formula on the main tuning list or makemicromusic,
but it is too elementary to post even there.

-Carl

🔗robert thomas martin <robertthomasmartin@bigpond.com.au>

5/7/2008 10:51:06 AM

--- In tuning-math@yahoogroups.com, Carl Lumma <carl@...> wrote:
>
> At 10:13 AM 5/7/2008, you wrote:
> >The formula for converting ratios to cents: c=(1200/log2) multiplied
by
> >log r. (or c=3986.313714 multiplied by log r where r is the decimal
> >equivalent of the ratio and c is the number of cents). You might
> >already know this but others may not.
>
> Robert,
>
> This sort of thing is prerequisite for this list. It's acceptable
> to ask about such a formula on the main tuning list or makemicromusic,
> but it is too elementary to post even there.
>
> -Carl
> So why are the last few hundred postings so largely devoid of tuning
data? What do you expect newcomers to think? I simply don't agree with
the basic premise that low number ratios have a direct bearing on music.