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On the Septimals

🔗Carl Lumma <clumma@...>

12/20/1997 9:57:00 AM
>>>}In the more usual timbres at least, the 7:6 interval beats too much to
>>>}be consonant, affected as it is by the unison.
>
> Speaking for my own experience, I don't concur with that whatsoever. I
>don't find 7:6 to be unpleasant or beating at all. (And I certainly have a
>lot of experience with 7:6, since my current main microtonal fascination
>approximates it well, and uses it as one of several basic building blocks).
>
> In comparison to 6:5, I find that 7:6 is no less discordant, but it is
>certainly darker in character, and has a certain "zap" sensation in place
>of 6:5's sweetness.

I agree. I find that the 7/6 juices up minor 7th chords, not to mention
providing the 7/4 for the 4^7 chord.

> That being said, I personally think that, although "dissonant" may be a
>livable choice of adjectives to describe 9:7, two that describe it better
>to my ears are "shocking" and "startling".

Good adjectives. I'd like to also remind of the way harmonic intervals work
with their buddies. The 9/7 behaves quite a bit differently in a plain dyad
than it does in a 4,5,6,7,8,9 chord.

>And also related to septimals, I don't find 7:4 to be even slightly
>discordant. I have described it over the list as like "a fifth with an
>attitude". Now I freely acknowledge that that's a self-contradictory
>description because of the obvious fact that 7:4 isn't ANY kind of fifth
>(except maybe a way-sharp augmented one!). Still to my ears 7:4's auditory
>effect has some curious similarities with 3:2's. I don't know if I can put
>those similarities into words any better than this: As with 3:2 or 2:1,
>7:4 fuses pitches very tightly, and its lack of the sweetness of major and
>minor thirds and sixths makes it seem quasi-perfect.

I'd never thought about this before, but it is so true. It has that
"square" feeling I always associate with the 3:2.

>But unlike any perfect interval, it has a flourescent "zap" much like
7:6's, >which is the "attitude" part.

damn straight.

Carl


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🔗mr88cet@texas.net (Gary Morrison)

12/21/1997 1:58:00 AM
>>Thanks for the thanks Neil, ...
>Thanks for help getting Acoustic Stick out, Gary!
>>And when it comes to microtonal Christmas CDs,...
>>I have never much cared for the music of Partch.

(Just to make sure that nobody gets a wrong impression, that last line
about Partch was not a quote from me, unlike the previous dialogs.)


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Subject: Re: On the Septimals
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