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Re: LCM

🔗Brett Barbaro <barbaro@noiselabs.com>

4/16/1999 12:02:45 PM

Marion wrote:

> 1/1 16/15 9/8 6/5 5/4 4/3 64/45 3/2 8/5 5/3 16/9 15/8
>
> The LCM of this scale is 1,036,800. Using Aliq, or the LCMscal program from
> FasTrak, it is fairly simple to ascertain that there are eight 14-tone scales
> with this LCM, and a total of 69 scales with 12 or more tones.

[...]

> In a more general sense, I find LCM useful because it describes the pattern
> of waveform interference when a chord is sounded.

That's fine, but a scale is not a chord! If all you're going to do with a scale is play all the notes at
once, then yes, looking at its LCM makes some sense. But scales aren't used that way!

🔗Ara Sarkissian <cypriot@xxxxxxxxx.xxxx>

4/20/1999 9:16:29 PM

Can someone define LCM in words (not numbers - well, as few of them as
possible please) ?

----------
>From: Brett Barbaro <barbaro@noiselabs.com>
>To: tuning@onelist.com
>Subject: [tuning] Re: LCM
>Date: Fri, Apr 16, 1999, 3:02 PM
>

>From: Brett Barbaro <barbaro@noiselabs.com>
>
>Marion wrote:
>
>> 1/1 16/15 9/8 6/5 5/4 4/3 64/45 3/2 8/5 5/3 16/9 15/8
>>
>> The LCM of this scale is 1,036,800. Using Aliq, or the LCMscal program from
>> FasTrak, it is fairly simple to ascertain that there are eight 14-tone scales
>> with this LCM, and a total of 69 scales with 12 or more tones.
>
>[...]
>
>> In a more general sense, I find LCM useful because it describes the pattern
>> of waveform interference when a chord is sounded.
>
>That's fine, but a scale is not a chord! If all you're going to do with a
>scale is play all the notes at
>once, then yes, looking at its LCM makes some sense. But scales aren't used
>that way!
>
>
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