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 Forum index » Artists » Seraph
Alphablues
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seraph
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PostPosted: Fri Jun 15, 2007 6:00 am    Post subject: Alphablues Reply with quote  Mark this post and the followings unread

a little exercise based on the Carlos Alpha scale: a perfect fifth (3/2) divided into 9 equal parts of 77.995 cents each.

arrow Listen to Alphablues

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Politics is the entertainment division of the military industrial complex - Frank Zappa

Last edited by seraph on Fri Apr 11, 2008 7:10 am; edited 4 times in total
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PostPosted: Sat Jun 16, 2007 2:50 am    Post subject: Reply with quote  Mark this post and the followings unread

Interesting one. How did you do it?
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PostPosted: Sat Jun 16, 2007 6:42 am    Post subject: Reply with quote  Mark this post and the followings unread

Is interesting indeed, sound wise I mean.

And it cost me quite some time to see that 77.995 is the correct amount of cents and that Wendy rounded it up to 78. Not that anyone would hear the difference of course Very Happy

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seraph
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PostPosted: Sat Jun 16, 2007 12:45 pm    Post subject: Reply with quote  Mark this post and the followings unread

EdisonRex wrote:
Interesting one. How did you do it?

Hi Paul, thanks for asking.
The microtuning is done with LMSO. As you can see from the attached picture a perfect fifth (3/2, 701.955 cents) spans 9 keys so, on a standard keyboard, playing a major sixth (like C-A) you get the sound of a perfect fifth. it's tricky because this scale is a nonoctave scale (it does not repeat every 1200 cents). The song structure is that of a basic blues: I/IV/V. The closest interval to a perfect fourth is 468 cents above the tonic chord so it's very very flat Confused (but the V chord is "perfect"). I tried to use the dissonant notes as passing tones in order to get a bluesy feeling. Just for the hell of it Wink


carlos alpha.jpg
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how the scale looks on LMSO
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carlos alpha.jpg



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Politics is the entertainment division of the military industrial complex - Frank Zappa

Last edited by seraph on Sat Aug 25, 2007 6:07 am; edited 2 times in total
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PostPosted: Sat Jun 16, 2007 12:57 pm    Post subject: Reply with quote  Mark this post and the followings unread

Blue Hell wrote:
Not that anyone would hear the difference of course Very Happy

Thanks Jan
as someone microtonally wiser than me noted once, even "micromistakes" add up and become noticeable, on the long run. Cool

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PostPosted: Sat Jun 16, 2007 4:09 pm    Post subject: Reply with quote  Mark this post and the followings unread

Carlo, I like to listen to your exercises, they make me think, which is why I like to know how you do them and what you are thinking about when you do them. Besides, you have a lot of the same software I have Wink But I don't have LMSO... yet. Idea
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seraph
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PostPosted: Sat Jun 16, 2007 4:34 pm    Post subject: Reply with quote  Mark this post and the followings unread

Paul, thanks for your kind words. Feel free to ask me anything regarding my "exercises". I can recommend you LMSO not only because it is a great piece of software (MacOSX only) but also because its creator (X.J.Scott) is a very knowledgeable and helpful guy.
I guess your wife too could benefit from using LMSO for her activity because she could be able to show students different tuning systems used during different historic periods. the included example shows a pythagoric major third (81/64, 407.82 cents) followed by a tempered major third (400 cents) and a just major third (5/4, 386.31 cents). the example is repeated twice.
this example is part of my dissertation on "Technology and Temperament" of which I will present excerpts at "Chateau Sonore"
notice the different beating rate of those major thirds and the different perception you get between the first and the second time you listen to this example.


majorthirds.mp3
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PostPosted: Sun Jun 17, 2007 6:14 am    Post subject: Reply with quote  Mark this post and the followings unread

Ah.

Yeah she's out back carving deer bones into pipes today, I went out and mentioned this, yes, she's interested too, so I'll probably get LMSO this week once my Mac comes back from the Apple Hospital. She's interested in representing just tunings, especially regarding the modal context of the 10th-12th century (as you can see we spend time in the Saxon and Viking, pre-Norman era). Not exactly electronica but amazing how much commonality my wife's and my activities end up having.

I'll post comments/questions as they come up. I see there is a forum for it.

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Parker: Like, old and outdated.


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