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Messages 17403 - 17432 of 17519   Oldest  |  < Older  |  Newer >  |  Newest
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17403
Ready to write my book on Hexachord Theory. I really feel I have pushed this theory about as far as you can. My original goal was to find a nice seven by five...
Paul H
paulhjelmstad
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Oct 23, 2008
4:40 pm
17404
This might interest people on this list not already on the distribution list below. --john ... Subject: FW: CFP - Mathematics and Computation in Music 2009 /...
John H. Chalmers
jhchalme
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Oct 25, 2008
1:18 am
17405
... Hi Keenan & all others, I found at least that 4 epimoric decompositions of the Schisma: 32805/32768 = 5*3^8/2^15 = (886 + 23/37)/(885 + 23/37) ...
Andreas Sparschuh
a_sparschuh
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Oct 31, 2008
8:24 pm
17406
Have I got these right? frequency based on 2* = 12 half-steps frequency based on 3* = 19 half-steps frequency based on 5* = 28 half-steps half-steps from...
tomhchappell
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Nov 3, 2008
8:56 pm
17407
... Sorry about the delay in your post, Tom. Your message was caught in the group's spam filter. Your table came out pretty badly wrapped in my e-mail client....
Carl Lumma
clumma
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Nov 3, 2008
9:06 pm
17408
... Did you meant the ordinary: http://en.wikipedia.org/wiki/Piano_key_frequencies ? But i do perfer to tune my own piano in the absolute-pitches in 5ths: A1 =...
Andreas Sparschuh
a_sparschuh
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Nov 4, 2008
3:37 pm
17409
I found this link from the tuning discussion on consonance and dissonance: http://www.springerlink.com/content/l874k42k6660q434/ It turns out that the whole...
Graham Breed
x31eq
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Nov 8, 2008
3:36 am
17410
To Carl Lumma: That's OK, Carl. Wikipedia did it better. I couldn't find it the other day, though. ... Yes, that's what I meant. I think I got it wrong; c is...
tomhchappell
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Nov 15, 2008
7:02 am
17411
... but then yours own personal conotation causes confusion, when compared against the common usual: http://en.wikipedia.org/wiki/Helmholtz_pitch_notation or ...
Andreas Sparschuh
a_sparschuh
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Nov 21, 2008
2:09 pm
17412
I'm looking up pure mathematics again. I tried to find a good algorithm for integer bases of a null space (which is to say finding unison vectors). It turns...
Graham Breed
x31eq
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Dec 2, 2008
1:02 pm
17413
Hi Graham, Don't know if this helps, but there are two chapters on lattice basis reduction here: http://www.cs.berkeley.edu/~karp/greatalgo/ The one that's...
Carl Lumma
clumma
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Dec 3, 2008
6:01 pm
17414
... Hi Carl, I don't usually top-post but you did:) So I am going to read this lecture and try to get back in the loop here. I need to ask a really naive...
Paul H
paulhjelmstad
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Dec 3, 2008
9:15 pm
17415
... It's a good reference, but it doesn't mention null spaces, or exactly what kinds of lattices the algorithm works for. After that it talks about integer...
Graham Breed
x31eq
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Dec 4, 2008
1:58 am
17416
... What's a Leech Lattice?-) These are the "lattices" as defined in group theory, although you can also see them as linear algebra with integers. A group...
Graham Breed
x31eq
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Dec 4, 2008
2:27 am
17417
Sorry, the complexity of a temperament class is the (hyper)volume of the (hyper)parallelapiped with the vals and origins as the corners. Not the distance to...
Graham Breed
x31eq
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Dec 4, 2008
2:41 am
17418
... Hi Paul! Around here the space usually dictates the lattice. We've worked with tonespace, chordspace (the dual to chordspace), tuningspace, valspace...
Carl Lumma
clumma
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Dec 4, 2008
3:42 am
17419
... I think you're calling tonespace "ratio space" here. I think I got the bit about its dual wrong. What I called chordspace is I think just a different...
Carl Lumma
clumma
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Dec 4, 2008
3:58 am
17420
... "Ratio space" is what i thought it was called when I originally joined the tuning list. A space containing ratios. For harmonic timbres that'd be like a...
Graham Breed
x31eq
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Dec 4, 2008
4:17 am
17421
Graham wrote; ... I'm sure it's been called many things, but tonespace is the most widely used -- McLaren, Monzo, Erlich, and others. ... Huh? ... It's Gene's...
Carl Lumma
clumma
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Dec 4, 2008
6:57 am
17422
... I see it's in Monz's dictionary, anyway, looking like ratio space. ... From earlier in this thread, "The idea of a tonespace is that all consonant dyads...
Graham Breed
x31eq
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Dec 4, 2008
11:47 am
17423
... really ... connection ... tuningspace, ... ask), ... are ... using. ... tonespace ... 1. ... Cool. Is there any chance this work might tie into a TOE? Is...
Paul H
paulhjelmstad
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Dec 4, 2008
6:56 pm
17424
... Show me. ... You say stuff like this in your pdfs too, but from my perspective it's way out in left field. Simple rationals are approximately the most...
Carl Lumma
clumma
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Dec 4, 2008
7:05 pm
17425
... Physics TOE? I doubt it. Though I am hoping some of Lisi's extra particles show up when the LHC finally starts running. ... Probably. ... I don't know. ...
Carl Lumma
clumma
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Dec 4, 2008
7:07 pm
17426
... Okay let me research this. What then is your "Dn" Lattice? Thx - Paul...
Paul H
paulhjelmstad
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Dec 4, 2008
9:04 pm
17427
... D3 lattice: http://www.research.att.com/~njas/lattices/D3.html According to this page, the E8 lattice is the union of two D8 lattices: ...
Carl Lumma
clumma
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Dec 4, 2008
9:17 pm
17428
... Great. So we are dealing with continuous groups. There is some correspondence between some of the sporadic groups and some of the Lie groups. I am into M12...
Paul H
paulhjelmstad
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Dec 4, 2008
9:48 pm
17429
... I don't know how I'm supposed to show the absence of a constraint on a concept without a formal definition. Tone-space, at least, is defined and described...
Graham Breed
x31eq
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Dec 5, 2008
1:19 am
17430
... You're the one talking about ratio space. I've seldom heard the term before. All the An lattices we've discussed for the past 11 years make all...
Carl Lumma
clumma
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Dec 5, 2008
2:20 am
17431
... Er, no, sorry. It's just a cubic lattice. The BCC lattice he talks about is (octave-equivalent) valspace. -Carl...
Carl Lumma
clumma
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Dec 5, 2008
2:27 am
17432
... It is interesting, anyway. Euclidean distances on the FCC lattice use a quadratic norm: (2 1 1) (1 2 1) (1 1 2) which is like a variance but adding...
Graham Breed
x31eq
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Dec 5, 2008
3:20 am
Messages 17403 - 17432 of 17519   Oldest  |  < Older  |  Newer >  |  Newest
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