This is an Opt In Archive . We would like to hear from you if you want your posts included. For the contact address see About this archive. All posts are copyright (c).

- Contents - Hide Contents - Home - Section 7

Previous Next

6000 6050 6100 6150 6200 6250 6300 6350 6400 6450 6500 6550 6600 6650 6700 6750 6800 6850 6900 6950

6450 - 6475 -



top of page bottom of page up down


Message: 6451 - Contents - Hide Contents

Date: Wed, 12 Feb 2003 21:52:04

Subject: Re: a tuning-math question

From: wallyesterpaulrus

--- In tuning-math@xxxxxxxxxxx.xxxx "daniel_anthony_stearns 
<daniel_anthony_stearns@y...>" <daniel_anthony_stearns@y...> wrote:
> Yes it's supposed to be a symmetric (1/1, 9/8, 6/5, 4/3, 3/2, 5/3, > 16/9, 2/1) 5-limit lattice. > > We understand how to generalize the order the step sizes for scales > with two step sizes--the generator does the work for us. > What I want > to be able to do is generalize the ordering of the step sizes for any > scale with any amount of step sizes.
note that the scale above is epimorphic (i.e., a periodicity block), and so is what gene refers to as a "scale along a line". maybe that'll help somehow.
> We understand that a 2:3 gives a 7-tone scale with 2 small steps and > 5 large steps ordered LLsLLLs.
ok . . .
> We also understand that a 4:5:6 gives > a 7-tone scale with 2 small steps, 2 medium steps and 3 large steps > ordered LMsLMLs.
a 4:5:6 "gives" this? if i treat 4:5:6 as a generator in the same sense as 2:3 is a generator, i get a 6-tone scale, a 10-tone scale, etc . . . but 7?
> What I seek to understand is a generalized ordering principle or > scheme (how step sizes could be ordered in random scales) that could > tie these two scales to say an 8-tone scale with 3 small steps, 1 > larger step, 2 even larger steps, and 2 largest steps.
i really don't know what you have in mind. can you give an example of such an 8-tone scale, and how it relates to the others?
> This is the sort of generalization I want. I already understand how > to generalize the size of these steps, but not their order.
why don't you flesh out the part you understand for us, so that we might get a better grip on what you don't?
top of page bottom of page up down


Message: 6452 - Contents - Hide Contents

Date: Wed, 12 Feb 2003 22:40:06

Subject: poking monz (was: Re: naming temperaments(

From: wallyesterpaulrus

--- In tuning-math@xxxxxxxxxxx.xxxx "monz" <monz@a...> wrote:

> i'll try to get right on it.
while we're at it, here's a more complete "small 5-limit intervals" chart to replace the one on your equal temperament page: Yahoo groups: /tuning-math/files/Paul/small.gif * [with cont.] due to the triangular/hexagonal geometry, it has the magical property that each vector points in exactly the same direction -- that is, has exactly the same slope -- as the green line for the corresponding temperament in the graphs above. check it out! moreover, this chart could be used in conjunction with a set of hexagonal bingo cards . . . as you know, i've made quite a few already, and can make more in about 2 seconds apiece . . . so that one can see exactly *how* a given small interval vanishes, or fails to, in a given equal temperament. then this chart would have a dual function . . . let me know, paul
top of page bottom of page up down


Message: 6453 - Contents - Hide Contents

Date: Wed, 12 Feb 2003 22:52:56

Subject: vanishing diatonic semitone

From: wallyesterpaulrus

i'd like to add one more row in this table, before the first row:

Yahoo groups: /tuning/database? * [with cont.] 
method=reportRows&tbl=10&sortBy=4&sortDir=down&start_at=0&query=

this row would have 16:15 vanishing, and connect the family of ETs 5, 
8, 3.

who can supply the necessary information?


top of page bottom of page up down


Message: 6454 - Contents - Hide Contents

Date: Wed, 12 Feb 2003 23:21:24

Subject: poking monz (was: Re: naming temperaments(

From: wallyesterpaulrus

hi monz . . .

i just noticed that some of the + signs and - signs are reversed on 
the "zoom 100" graph.

please allow me to fix them.

thanks,
paul


top of page bottom of page up down


Message: 6455 - Contents - Hide Contents

Date: Wed, 12 Feb 2003 23:54:03

Subject: Re: vanishing diatonic semitone

From: Dave Keenan

--- In tuning-math@xxxxxxxxxxx.xxxx "wallyesterpaulrus
<wallyesterpaulrus@y...>" <wallyesterpaulrus@y...> wrote:
> i'd like to add one more row in this table, before the first row: > > Yahoo groups: /tuning/database? * [with cont.] > method=reportRows&tbl=10&sortBy=4&sortDir=down&start_at=0&query= > > this row would have 16:15 vanishing, and connect the family of ETs 5, > 8, 3. > > who can supply the necessary information?
Aw, c'mon Paul. This isn't a 5-limit temperament, except perhaps in a musically-irrelevant purely-mathematical sense. This is the thing where the generator has to act as both the fourth and the major third (or the fifth and the minor sixth) and of course succeeds in doing neither. Next you'll be wanting the one where 9:10 vanishes. ;-) It's been a stretch for me to accept neutral thirds and pelogic as 5-limit temperaments. I think I have to draw the line at errors greater than 35 cents. So I have a similar objection to the one where 25:27 vanishes. But you should find what you want in http://uq.net.au/~zzdkeena/Music/5LimitTemp.xls.zip - Type Ok * [with cont.] (Wayb.)
top of page bottom of page up down


Message: 6456 - Contents - Hide Contents

Date: Wed, 12 Feb 2003 17:20:10

Subject: 5LimitTemp.xls

From: Carl Lumma

Dave,

The degeneracy column seems broken.  I've got Excel 2000.

-Carl


top of page bottom of page up down


Message: 6457 - Contents - Hide Contents

Date: Wed, 12 Feb 2003 17:28:39

Subject: Re: vanishing diatonic semitone

From: Gene W Smith

On Thu, 13 Feb 2003 01:27:39 -0000 "wallyesterpaulrus
<wallyesterpaulrus@xxxxx.xxx>" <wallyesterpaulrus@xxxxx.xxx> writes:

> the timbres that people like sethares talk about, even if they don't > always say so, start as harmonic and then each harmonic (up to 6, 8, > 12, whatever) is "tweaked" toward the nearest et (or whatever) > position. therefore, it's an approximation of an approximation of 5- > limit JI :)
Csound lets you play with these, but I was disappointed to find that unless the inharmonic partials are close to harmonic, I find the timbres get on my nerves.
top of page bottom of page up down


Message: 6458 - Contents - Hide Contents

Date: Wed, 12 Feb 2003 20:32:19

Subject: Re: 5LimitTemp.xls

From: Carl Lumma

>> >he degeneracy column seems broken. I've got Excel 2000. >> >> -Carl >
>I've only got Excel 97. Do you have the Analysis Toolpack (or >whatever) installed so the GCD function works? Look it up in Excel >Help.
Ah, now it works. That is, if only rows 17-19, 27-29, 32-34, 44-46 are supposed to be degenerate, and the rest blank. -Carl
top of page bottom of page up down


Message: 6459 - Contents - Hide Contents

Date: Wed, 12 Feb 2003 23:44:28

Subject: Re: poking monz (was: Re: naming temperaments(

From: monz

hi paul,


> From: <wallyesterpaulrus@xxxxx.xxx> > To: <tuning-math@xxxxxxxxxxx.xxx> > Sent: Wednesday, February 12, 2003 2:40 PM > Subject: [tuning-math] poking monz (was: Re: naming temperaments( > > > --- In tuning-math@xxxxxxxxxxx.xxxx "monz" <monz@a...> wrote: >
>> i'll try to get right on it. >
> while we're at it, here's a more complete "small 5-limit intervals" > chart to replace the one on your equal temperament page: > > Yahoo groups: /tuning-math/files/Paul/small.gif * [with cont.] done. > due to the triangular/hexagonal geometry, it has the magical property > that each vector points in exactly the same direction -- that is, has > exactly the same slope -- as the green line for the corresponding > temperament in the graphs above. check it out! > > moreover, this chart could be used in conjunction with a set of > hexagonal bingo cards . . . as you know, i've made quite a few > already, and can make more in about 2 seconds apiece . . . so that > one can see exactly *how* a given small interval vanishes, or fails > to, in a given equal temperament. > > then this chart would have a dual function . . . > > let me know, > paul
i'd like to include hexagonal graphs for *all* the EDOs on my "equal temperament" page *and* on the "bingo lattice" page. it's just a matter of me finding the opportunity to do it. keep sending me stuff ... i'll incorporate it as i have the chance. -monz
top of page bottom of page up down


Message: 6460 - Contents - Hide Contents

Date: Wed, 12 Feb 2003 10:35:09

Subject: Re: notational specificity cont'd

From: David C Keenan

Aaron wrote:

>Hi Dave. Thanks for your patience. Could one say that "comma inflected" >is a fairly accurate way to describe the notation?
Yes! But of course it only describes one aspect of the notation.
> I've seen the uploaded samples of the notation, and seen posts > referring to assignments of letter names and staff placements of > notes... I wonder: how many notes of various inflections - or, said > another way, how many discrete pitches - may conceivably occupy the same > position on a five line staff?
We haven't counted them yet, and the more obscure ones using schisma accents are still in flux. But assuming the single or double symbol versions of the notation (considering any schisma accent marks to be part of a single symbol) we can go from double-flat to double-sharp in steps which are not more than 2 cents wide relative to just fifths, therefore we can do _at_least_ 233 discrete pitches, but I believe the actual figure is more like 400. However most of what anyone will ever want to do with the notation can be done with only 12 symbols (and their inversions) in conjunction with existing sharp and flat symbols.
> Is it simply a matter of symbol combinatorics?
In the single-symbol version (using the multi-shaft and X-shaft arrows) there are no combinations of symbols required. In the double-symbol version one uses only the single-shaft arrows in combination with conventional sharps and flats and their doubles. So the answer to your question is "No" for these versions of the notation. It's simply a matter of the number of discrete symbols (including any which appear as an arrow with a schisma accent mark). The symbols themselves have been derived as combinations of 8 flags or half arrowheads (at most two at a time), 2 accent marks (at most one used), 4 shafts (exactly one used) and 2 directions (up or down). But not all combinations are necessary or valid. There is also the possibility of using multiple symbols against a single note in a one-symbol-per-prime manner. This is what I've called the multi-symbol version of the notation. We would discourage this as being _much_ harder to read. This could involve up to 10 symbols to determine a single pitch! And would give 98,415 (= 5*3^9) discrete pitches on a single staff line! About 98,000 of which would be utterly indistinguishable from their neighbours by even the most expert listener.
> How are positional boundaries determined?
Again, I'm not sure what you mean, but I'll assume you mean how does one determine which staff line or space to place a note on. This is really not much different from the situation _without_ comma inflection, and is often referred to as the issue of "correct spelling". This is usually based on the structure of the scale or the structure of any chords the note might be part of. But in the absence of such context the default solution would be to use the position that requires the least pitch deviation from the natural note (in which case double-flats or sharps would not be used). -- Dave Keenan Brisbane, Australia Dave Keenan's Home Page * [with cont.] (Wayb.)
top of page bottom of page up down


Message: 6462 - Contents - Hide Contents

Date: Wed, 12 Feb 2003 15:28:04

Subject: Re: A common notation for JI and ETs

From: David C Keenan

>--- In tuning-math@xxxxxxxxxxx.xxxx "gdsecor <gdsecor@y...>" ><gdsecor@y...> wrote: >--- In tuning-math@xxxxxxxxxxx.xxxx "Dave Keenan <d.keenan@u...>" ><d.keenan@u...> wrote: >I think that the term "comma" has been used in a broad sense to >denote smaller intervals (which we now call kleisma and schisma) more >often than larger ones,
Possibly more often. But I expect it _has_ been used to cover larger ones often enough.
> inasmuch as the term "diesis" has been used >for the latter since at least the 14th century. So I would be >inclined not to use the term "comma" for anything above ~37 cents, >even in a broader sense.
What term do you suggest we use for all these intervals typically less than a scale step, from schisminas to small semitones? Here's what my Shorter Oxford (1959) has to say: Comma ... 3. Mus. A minute interval or difference of pitch 1597. ... Diesis ... 1. Mus. a. In ancient Gr. music, the pythagorean semitone (ratio 243:256). b. Now, the interval equal to the difference between three major thirds and an octave (ratio 125:128); usually called enharmonic diesis. ...
>>> Unfortunately, the >>> particular dieses that we're using the o and m characters for are >>> both in the para category. >>
>> I wouldn't place too much importance on this. But I note that in the >> three categories we have these symbols. >> >> small dq /|~ (|( ~|\ //| |~) >> middle unv /|) (|~ /|\ |)) (/| >> large owm |\) (|) (|\ >> >> But I find there is not much hope of making our prefixes match up >with
>> any of these, except possibly in the large category. >>
>>> Perhaps we could use meta for the largest >>> group (the meaning, "beyond," would still apply) and find a >couple of
>>> other prefixes that wouldn't conflict with (and might even tie in >>> with) the letters q and n for the small and middle ranges. >> >> Good luck! >>
>> There aren't very many prefixes starting with q. The only one that >is
>> even slightly appropriate is "quasi-" but that means "almost but not >> quite" and would be better used for those things that have >> historically been called dieses but are smaller than 36.93 cents. >
>I wasn't expecting to find anything appropriate for q, anyway. I'm >just trying to avoid names that might cause confusion. >
>> "meso-" is _the_ Greek prefix meaning middle. >
>Yes, I thought of that one, but would rather not use it, since it >begins with m.
Given that meso- is such an obvious greek prefix for the job and it starts with the same letter as the English words middle, medium and mean, I don't feel we should avoid using it merely because the limtations of ASCII (which may not be relevant in a few years time) and the absence of a proper font, cause us to use the letter m to represent, in email, something which is not in the middle category. Someone might come up with a reason tomorrow that would cause us to change our single-character ASCII assignments. ASCII will never appear on the staff. And I should hope that the single-character ASCII approximations would never be used in teaching or explaining the notation.
>> It is used with various >> other Greek pairs such as: >> >> hypo- under >> meso- middle >> hyper- over >> >> endo- inside >> meso- middle >> ecto- outside >> >> proto- (or pro-) earlier or to the front >> meso- middle >> meta- later or to the rear >> >> lepto- fine small thin delicate >> meso- middle >> hadro- thick stout >
>I also found intra- (within or inside), neo- (new), and peri- (close >at hand, near, adjacent). In evaluating all of these, I tried to >identify what I would call the prototypical diesis in each group:
Shouldn't you instead be looking at the primary interpretation of the most commonly ocurring sagittal symbol in each group?
>37-45 cents -- 125:128, the meantone diesis, is not only in the group >with the *smallest size*, but is also the diesis by which three 4:5s >*fall short* of (i.e., on the near side of) an octave. So I thought >that peri- or intra- might be appropriate. Of these two I prefer >peri-. But proto- is also good, for a couple of reasons: it is >similar in meaning to peri-, and it is the opposite of meta- (should >we use that term for the large group). Besides, 125:128, which is >probably the best-known of any diesis in any group (and thus, on >account of its prominence, the one with the strongest claim to the >label proto-diesis), would validate an additional shade of meaning by >which the term could be applied to this group.
But the minor diesis 125:128 is rarely used in the sagittal notation, having symbol .//|. By far the most common in this range will be the 25-<small>diesis //|. I can't find anywhere this has been previously named, presumably because it is simply a double syntonic comma. So, considered as a "comma" in its own right it is almost as "neo-" as the 11 and 13 commas below. And there are other commas in this group which are probably newer.
>45-57 cents -- 32:33, the unidecimal diesis (or quartertone), >introduces some of the *strangest new* harmonies encountered in >alternative tunings. I thought neo- might be more descriptive of an >interval such as this, rather than some nondescript label (such as >meso-) that suggests that it might be average or middlin'.
But it _is_ average as far as size goes, and that's what these prefixes are supposed to be about.
> Even the >13 diesis (1024:1053, the second most prominent member of the group, >and the one that's actually symbolized by an "n") is new and strange.
But their complements in the large-diesis group are just as new and strange. And anyway, how long does something remain "new"? Also, I should think that if 125:128 is prototypical of the small group then 243:250 would be that for the medium group. But again this is not a common comma to want to notate. It might be notated as /|) or (|~ . The 11-<medium>diesis /|\ will certainly be the most common in this group.
>57-69 cents -- 625:648, besides being a *large* diesis (~27:28, or >1deg19) is also the amount by which four 5:6s *exceed* (i.e., go >beyond) an octave.
I agree that the prototypical diesis in the large group is the major diesis 625:648, again not something we'd commonly use since it is '(|) . Clearly the 11-<large>diesis (|) will be the most common here.
>I believe that we agree that meta- is a good >prefix for this group.
Well, no. Only that it applies to this group better than it does to the medium group. The use of "meta-" to mean "beyond" is a recent departure from the Greek usage. As the Shorter Oxford puts it: "In supposed analogy to 'Metaphysics' (misaprehended as meaning 'the science of that which transcends the physical'), meta- has been prefixed to the name of a science, to form a designation of a higher science of the same nature but dealing with ulterior problems." But why not use prefixes that are a valid description of _all_ the commas in the group, rather than just ones that may be typical in any sense? i.e. ones that relate to size.
> Need I say more?
I'm afraid so. :-) My main objection is that neo- tells one nothing about the size. And if one adopts the modern sense of meta- one might take a meta-diesis to be a difference between dieses, in the same way that a diesis is a difference between other intervals. For example, we might well have used the term meta-comma to describe the differences between commas that we instead called schismas and now schisminas. If one takes the biological meanings of proto- front and meta- rear (of organisms) it is unclear that there is any correspondence with small and large. If one takes the temporal meaning of proto- before or early or primitive and meta- after or late or advanced, then it is only slightly more clear. In regard to having the right _meaning_, the best Greek set I can find are hypo- meso- hyper- If we were to depart from the Greek minor neutral major would be obvious enough, and so would small medium (or mean) large It is unfortunate that the word "diesis" already has two more syllables than we'd like it to have. This is presumably why we feel compelled to shorten any prefix we might add to it, down to a single syllable. We might instead shorten "diesis" to "di" for convenience when spoken (say in rehearsals) and then not need to shorten the prefixes.
>With these labels, the boundaries (in cents) would then be: > >0 >schismina >0.98 >schisma >4.50 >kleisma >13.47 >comma >36.93 >protodiesis >45.11 >neodiesis >56.84 >metadiasis >68.57
Boundaries good. Labels still need work. -- Dave Keenan Brisbane, Australia Dave Keenan's Home Page * [with cont.] (Wayb.)
top of page bottom of page up down


Message: 6463 - Contents - Hide Contents

Date: Thu, 13 Feb 2003 19:13:33

Subject: Re: vanishing diatonic semitone

From: wallyesterpaulrus

--- In tuning-math@xxxxxxxxxxx.xxxx Gene W Smith <genewardsmith@j...> 
wrote:
> On Thu, 13 Feb 2003 01:27:39 -0000 "wallyesterpaulrus > <wallyesterpaulrus@y...>" <wallyesterpaulrus@y...> writes: >
>> the timbres that people like sethares talk about, even if they don't >> always say so, start as harmonic and then each harmonic (up to 6, 8, >> 12, whatever) is "tweaked" toward the nearest et (or whatever) >> position. therefore, it's an approximation of an approximation of 5- >> limit JI :) >
> Csound lets you play with these, but I was disappointed to find that > unless the inharmonic partials are close to harmonic, I find the timbres > get on my nerves.
how close? for example, if you tweak them all the way to 8-equal, do they get on your nerves? how about 12-equal?
top of page bottom of page up down


Message: 6464 - Contents - Hide Contents

Date: Thu, 13 Feb 2003 19:16:17

Subject: poking monz (was: Re: naming temperaments(

From: wallyesterpaulrus

--- In tuning-math@xxxxxxxxxxx.xxxx "monz" <monz@a...> wrote:

> i'd like to include hexagonal graphs for *all* the EDOs on my > "equal temperament" page *and* on the "bingo lattice" page. > it's just a matter of me finding the opportunity to do it.
i'll make the lattices, you just need to upload them :) seriously, there's no point in going much beyond 72-equal with these lattices, is there?
> keep sending me stuff ... i'll incorporate it as i have the chance. thanks!
top of page bottom of page up down


Message: 6465 - Contents - Hide Contents

Date: Thu, 13 Feb 2003 19:20:02

Subject: Re: vanishing diatonic semitone

From: wallyesterpaulrus

--- In tuning-math@xxxxxxxxxxx.xxxx Graham Breed <graham@m...> wrote:
> wallyesterpaulrus wrote: >
>> the timbres that people like sethares talk about, even if they don't >> always say so, start as harmonic and then each harmonic (up to 6, 8, >> 12, whatever) is "tweaked" toward the nearest et (or whatever) >> position. therefore, it's an approximation of an approximation of 5- >> limit JI :) >
> That's not true. Many of Sethares' timbres are measured from physical > objects. It is true that the ones that start as harmonic timbres start > as harmonic timbres. > > > Graham
the ones that depart too much from harmonicity don't evoke the sensation of a single pitch. this may be what's getting on gene's nerves . . . it's true that sethares works in two directions: matching tuning to timbre and matching timbre to tuning. the former case has some issues that i don't think he's dealt with properly (as even joseph seemed to notice). the latter, though, is the case i was referring to, and as sethares was the one who wished to see 7, 8, 9, and 10 on the et chart, i think it's important to acknowledge the approximation-of- approximation-of-5-limit-ji possibilities inherent in these tunings.
top of page bottom of page up down


Message: 6466 - Contents - Hide Contents

Date: Thu, 13 Feb 2003 19:21:58

Subject: Re: vanishing diatonic semitone

From: wallyesterpaulrus

--- In tuning-math@xxxxxxxxxxx.xxxx "wallyesterpaulrus 
<wallyesterpaulrus@y...>" <wallyesterpaulrus@y...> wrote:

> it's true that sethares works in two directions: matching tuning to > timbre and matching timbre to tuning. the former case has some issues > that i don't think he's dealt with properly
dealt with *the former* properly . . . because i think he derives scales as analogous to harmonic series scales -- which are actually quite rare in practice -- periodicity blocks would be a far better paradigm . . .
top of page bottom of page up down


Message: 6467 - Contents - Hide Contents

Date: Thu, 13 Feb 2003 11:29:55

Subject: scala show data

From: Carl Lumma

Manuel,

With Scala 2.05f, I observe...

equal 6
show data

strictly proper
roth stability 0
lumma stability 1

show data

strictly proper
roth stability 423799.833333
lumma stability 1

show data

strictly proper
roth stability 67041792.766666
lumma stability 1

The goofy stability value seems to max out at the 67 value
despite further show data commands.

-Carl


top of page bottom of page up down


Message: 6468 - Contents - Hide Contents

Date: Thu, 13 Feb 2003 19:36:57

Subject: thanks monz (was: Re: naming temperaments)

From: wallyesterpaulrus

--- In tuning-math@xxxxxxxxxxx.xxxx "wallyesterpaulrus 
<wallyesterpaulrus@y...>" <wallyesterpaulrus@y...> wrote:

>> can you please post the link to the table again? >> i'll try to get right on it. >> >> >> -monz >
> the table can be sorted any way you please, but i think most helpful > for the user would be alphabetically by temperament name, so that one > can see a green line on the graph and immediately find the relevant > info: > > Yahoo groups: /tuning/database? * [with cont.] > method=reportRows&tbl=10&sortBy=6 > > my second choice would be sorting by the "odd limit" of the vanishing > comma's ratio: > > Yahoo groups: /tuning/database? * [with cont.] > method=reportRows&tbl=10&sortBy=4 > > feel free to replace the 60+-digit numerators and denominators with > the scientific notation on your current table, if you wish. > > thanks again and let me know when you have time again to revisit your > wonderful Dictionary, so that i may help improve it. > > -paul hi monz,
i see you've incorporated my other corrections for your equal temperament page -- THANKS!! -- but haven't updated the table discussed above. is there something i can do to the format to make it easier for you? a third useful way of sorting the table would be according to decreasing rms error -- how close the green line comes to the origin: Yahoo groups: /tuning/database? * [with cont.] method=reportRows&tbl=10&sortBy=10&sortDir=up hopefully one of these three sorting methods will be satisfactory for you. btw, credit for this table (which i compiled) belongs not only to carl lumma, but to pretty much the entire tuning-math team, and primarily gene. thanks, paul
top of page bottom of page up down


Message: 6469 - Contents - Hide Contents

Date: Thu, 13 Feb 2003 11:58:57

Subject: Re: scala show data

From: Carl Lumma

Manuel,

I also notice that "Lumma stability" is the title of the value
in the show data output, but "Lumma instability" is the title
in the help for show data.

Also in the help, the return type is given as n>1.  But if it
really is stability you're returning, it would be 0 <= n <= 1,
right?  Since it's the *portion* of the interval of equivalence
not covered by the spans of the interval classes...

-Carl


top of page bottom of page up down


Message: 6470 - Contents - Hide Contents

Date: Thu, 13 Feb 2003 14:08:32

Subject: "Ultimate" 5-limit again

From: Gene W Smith

I returned to this, and added names, poptimal generators (this time using
everyone's favorite defintion of the minimax generator) and "extensions".
These are defined in a way which is very strict and perhaps a little
arbitrary, but the results seem of some interest. I took the poptimal
generator, found the corresponding val with the lowest badness, extended
it in the way which gave lowest badness, and looked for the lowest
badness 7-limit temperament compatible with this val and the 5-limit
comma. I only go up to Monzimic with this list, which really seems far
enough. To make up for that and make Paul happy, I tacked Miracle on the
end despite the fact that as a 5-limit temperament it's nothing to get
excited about.

Bug 7/31 Extends 15/14 to Bug ([2, 3, 5, 0, 2, 3])
27/25 [[1, 2, 3], [0, -2, -3]] [1200., 268.056438833948093748427143263]
3.739252 35.609240 1861.731473

Pelogic 10/23 Extends 36/35 to Pelogic (aka Hexadecimal)
135/128 [[1, 2, 1], [0, -1, 3]] [1200., 522.862345874111793591855751693]
4.132031 18.077734 1275.365360

Blackwood Universal
256/243 [[5, 8, 12], [0, 0, -1]] [240., 84.6637865678588914278600509674]
5.493061 12.759741 2114.877638

Dicot Universal
25/24 [[1, 1, 2], [0, 2, 1]] [1200., 350.977500432693708872243366367]
3.025593 28.851897 799.108711

Diminished Universal
648/625 [[4, 6, 9], [0, 1, 1]] [300., 94.1343573651111175944350240576]
6.437752 11.060060 2950.938432

Negri 2/19 Extends 49/48 to Negri (aka Tertiathirds)
16875/16384 [[1, 2, 2], [0, -4, 3]] [1200.,
126.238272015257926746682149917]
8.172550 5.942563 3243.743713

Porcupine 11/81 Extends 64/63 to Porcupine
250/243 [[1, 2, 3], [0, -3, -5]] [1200., 162.996026370546548951179738408]
5.948286 7.975801 1678.609846

Augmented Universal
128/125 [[3, 5, 7], [0, -1, 0]] [400., 91.2018560670299909777049249654]
4.828314 9.677666 1089.323984

Magic 19/60 Extends 225/224 to Magic
3125/3072 [[1, 0, 2], [0, 5, 1]] [1200., 379.967949195094816842076920201]
7.741412 4.569472 2119.954990

Quadrafifths 26/177 Extends 245/243 to Octafifths
20000/19683 [[1, 1, 1], [0, 4, 9]] [1200.,
176.282270436412295298990817071]
9.785568 2.504205 2346.540676

Pythagoric Universal
531441/524288 [[12, 19, 28], [0, 0, -1]] [100.,
14.6637865678588914278600509674]
13.183347 1.382394 3167.444999

Meantone 34/81 Extends 126/125 to Meantone
81/80 [[1, 2, 4], [0, -1, -4]] [1200., 503.835154026035812053011163756]
4.132031 4.217731 297.556531

Diaschismic 10/114 Extends 245/243 to Shrutar
2048/2025 [[2, 3, 5], [0, 1, -2]] [600., 105.446531009812541696859310996]
6.271199 2.612822 644.408867

Tertiary 23/285 to Extends 3136/3125 to Tertiary ([3, -12, -30, -26, -56,
-36])
67108864/66430125 [[3, 5, 6], [0, -1, 4]] [400.,
96.7879385616949726317268914802]
15.510107 .905187 3377.402314

Hemisixths 55/149 Various extensions, none much good
78732/78125 [[1, -1, -1], [0, 7, 9]] [1200.,
442.979297439105373735900374126]
12.192182 1.157498 2097.802867

Wuerschmidt 53/164 Various extensions, none much good
393216/390625 [[1, -1, 2], [0, 8, 1]] [1200.,
387.819673068349143521938606127]
12.543123 1.071950 2115.395301

Orwell 43/190 Extends 1029/1024 to Trifokker ([21, -9, -7, -63, -70, 9])
2109375/2097152 [[1, 0, 3], [0, 7, -3]] [1200.,
271.589599585245148575185388331]
12.772341 .800410 1667.723301

Septathirds 31/673 No good extensions
4294967296/4271484375 [[1, 2, 2], [0, -9, 7]] [1200.,
55.2754932571412314963954609732]
18.573955 .483108 3095.692488

Kleismic 65/246 Extends 5120/5103 to Countercatakleismic ([6, 5, -31, -6,
-66, -86])
15625/15552 [[1, 0, 1], [0, 6, 5]] [1200.,
317.079675185758890225628070818]
9.338935 1.029625 838.631548

Amity 58/205 Extends 5120/5103 to Amity
1600000/1594323 [[1, 3, 6], [0, -5, -13]] [1200.,
339.508825625715624367834924710]
13.794200 .383104 1005.555381

Parakleismic 31/118 Extends 3136/3125 to Parakleismic ([13, 14, 35, -8,
19, 42])
1224440064/1220703125
[[1, 5, 6], [0, -13, -14]] [1200., 315.250913337821936408197840098]
21.322672 .276603 2681.521263

Vulture 128/323 Extends 4375/4374 to Vulture ([4, 21, -56, 24, -100,
-189])
10485760000/10460353203 
[[1, 0, -6], [0, 4, 21]] [1200., 475.542233398945960632986914825]
21.733049 .153767 1578.433204

Semisuper 30/506 Nothing much good
6115295232/6103515625
[[2, 4, 5], [0, -7, -3]] [600., 71.1460635722374759764193142621]
21.207625 .194018 1850.624306

Enneadecal Universal
19073486328125/19042491875328 
[[19, 30, 44], [0, 1, 1]] [63.1578947368421052631578947368,
7.29225210195322285759291880280]
30.579320 .104784 2996.244873

Semitonic 95/1019 No good extensions
295578376007080078125/295147905179352825856 
[[1, 0, 4], [0, 17, -18]] [1200., 111.875426120872633513689333181]
38.845486 .058853 3449.774562

Tricot 233/494 Extends 4375/4374 to Tricot ([3, 29, -95, 39, -159, -302])
68719476736000/68630377364883 
[[1, 3, 16], [0, -3, -29]] [1200., 565.988014913065527948022354197]
30.550812 .057500 1639.596150

Schismic 120/289 Extends 4375/4374 to Infraschismic ([1, -8, 39, -15, 59,
113])
32805/32768 
[[1, 2, -1], [0, -1, 8]] [1200., 498.272487171563819993901705714]
9.459948 .161693 136.885775

Counterschismic 237/571 No good extensions
2954312706550833698643/2951479051793528258560
[[1, 2, 21], [0, -1, -45]] [1200., 498.082318148218414995068857757]
48.911647 .026391 3088.065497

Hemithird 232/1441 Extends 4375/4374 to Infrahemithird ([15, -2, 113,
-38, 137, 268])
274877906944/274658203125
[[1, 4, 2], [0, -15, 2]] [1200., 193.199614933859969427837273253]
24.977022 .060822 947.732642

Minortone 196/1289 Extends 2460375/2458624 to Hemiminortone
([30, 70, 129, 32, 109, 103]. Minortone is [17, 35, -21, 16, -81, -147])
50031545098999707/50000000000000000 
[[1, -1, -3], [0, 17, 35]] [1200., 182.466089137089694182158775289]
38.845486 .025466 1492.763207

Ennnealimmal 68/1665 Extends 2401/2400 to Ennealimmal
7629394531250/7625597484987
[[9, 15, 22], [0, -2, -3]] [133.333333333333333333333333333,
49.0088197863290461293795242156]
33.653272 .025593 975.428947

Glum 103/935 Nothing much good
2475880078570760549798248448/2474715001881122589111328125
[[1, 5, 1], [0, -31, 12]] [1200., 132.194510561451335831533197063]
55.785793 .014993 2602.883149

Kwasy 182/1342 Extends 4375/4374 to Hemikwasy ([16, -10, 152, -53, 196,
381])
9010162353515625/9007199254740992
[[2, 1, 6], [0, 8, -5]] [600., 162.741892126380267669129153916]
31.255737 .017725 541.228379

Mum 341/730 Extends 4375/4374 to Mum ([33, 25, 131, -37, 115, 234])
116450459770592056836096/116415321826934814453125 
[[1, 17, 14], [0, -33, -25]] [1200., 560.546969532517954992081849041]
50.788153 .012388 1622.898233

Bum 237/901 Extends 4375/4374 to Bum ([51, 52, 149, -36, 93, 200])
444089209850062616169452667236328125/444002166576103304796646509039845376
[[1, 15, 16], [0, -51, -52]] [1200., 315.647874693157629813083932838]
82.462759 .004660 2613.109284

Monzimic 116/559 Extends 4375/4374 to Monzimic ([2, 37, -134, 54, -218,
-415])
450359962737049600/450283905890997363
[[1, 2, 10], [0, -2, -37]] [1200., 249.018447894645757478665305415]
39.665603 .005738 358.125500

...

Miracle 41/422 Extends 225/224 to Miracle 
34171875/33554432
[[1, 1, 3], [0, 6, -7]]  [1200., 116.578231256479]
14.2507126003310  1.98070788903097  5732.31669654049


top of page bottom of page up down


Message: 6471 - Contents - Hide Contents

Date: Thu, 13 Feb 2003 22:35:36

Subject: Re: "Ultimate" 5-limit again

From: wallyesterpaulrus

--- In tuning-math@xxxxxxxxxxx.xxxx Gene W Smith <genewardsmith@j...> 
wrote:


> Schismic 120/289 Extends 4375/4374 to Infraschismic ([1, -8, 39, - 15, 59, > 113]) > 32805/32768 > [[1, 2, -1], [0, -1, 8]] [1200., 498.272487171563819993901705714] > 9.459948 .161693 136.885775
ok, but . . .
> Counterschismic 237/571 No good extensions > 2954312706550833698643/2951479051793528258560 > [[1, 2, 21], [0, -1, -45]] [1200., 498.082318148218414995068857757] > 48.911647 .026391 3088.065497
this wasn't in your original list. why is it here now? why wasn't it there then?
top of page bottom of page up down


Message: 6472 - Contents - Hide Contents

Date: Thu, 13 Feb 2003 00:00:00

Subject: Re: vanishing diatonic semitone

From: wallyesterpaulrus

--- In tuning-math@xxxxxxxxxxx.xxxx "Dave Keenan <d.keenan@u...>" 
<d.keenan@u...> wrote:
> --- In tuning-math@xxxxxxxxxxx.xxxx "wallyesterpaulrus > <wallyesterpaulrus@y...>" <wallyesterpaulrus@y...> wrote:
>> i'd like to add one more row in this table, before the first row: >> >> Yahoo groups: /tuning/database? * [with cont.] >> method=reportRows&tbl=10&sortBy=4&sortDir=down&start_at=0&query= >> >> this row would have 16:15 vanishing, and connect the family of ETs 5, >> 8, 3. >> >> who can supply the necessary information? >
> Aw, c'mon Paul. This isn't a 5-limit temperament, except perhaps in a > musically-irrelevant purely-mathematical sense. This is the thing > where the generator has to act as both the fourth and the major third > (or the fifth and the minor sixth) and of course succeeds in doing > neither.
if we had listened to you about badness, you wouldn't be seeing any green lines on the graph with 494 and 612 on it. things like this are useful to know.
> Next you'll be wanting the one where 9:10 vanishes. ;-)
not really -- this one just seems like a severe omission at the moment, if you look at the graphs and charts.
> But you should find what you want in > http://uq.net.au/~zzdkeena/Music/5LimitTemp.xls.zip - Type Ok * [with cont.] (Wayb.) thanks!!
top of page bottom of page up down


Message: 6473 - Contents - Hide Contents

Date: Thu, 13 Feb 2003 22:45:32

Subject: Re: "Ultimate" 5-limit again

From: wallyesterpaulrus

--- In tuning-math@xxxxxxxxxxx.xxxx "wallyesterpaulrus 
<wallyesterpaulrus@y...>" <wallyesterpaulrus@y...> wrote:
> --- In tuning-math@xxxxxxxxxxx.xxxx Gene W Smith <genewardsmith@j...> > wrote: > >
>> Schismic 120/289 Extends 4375/4374 to Infraschismic ([1, -8, 39, - > 15, 59, >> 113]) >> 32805/32768 >> [[1, 2, -1], [0, -1, 8]] [1200., 498.272487171563819993901705714] >> 9.459948 .161693 136.885775 >
> ok, but . . . >
>> Counterschismic 237/571 No good extensions >> 2954312706550833698643/2951479051793528258560 >> [[1, 2, 21], [0, -1, -45]] [1200., 498.082318148218414995068857757] >> 48.911647 .026391 3088.065497 >
> this wasn't in your original list. why is it here now? why wasn't it > there then?
probably i goofed. can you help fill in all the data for the row that i would need to add to this table: Yahoo groups: /tuning/database? * [with cont.] method=reportRows&tbl=10&sortBy=5&sortDir=up i'll then add the corresponding green line in the relevant et graphs . . .
top of page bottom of page up down


Message: 6474 - Contents - Hide Contents

Date: Thu, 13 Feb 2003 00:26:36

Subject: poking monz (was: Re: naming temperaments(

From: wallyesterpaulrus

--- In tuning-math@xxxxxxxxxxx.xxxx "wallyesterpaulrus 
<wallyesterpaulrus@y...>" <wallyesterpaulrus@y...> wrote:
> hi monz . . . > > i just noticed that some of the + signs and - signs are reversed on > the "zoom 100" graph. > > please allow me to fix them. > > thanks, > paul
here is the corrected "zoom 100" graph: Yahoo groups: /tuning-math/files/Paul/zooms.gif * [with cont.] and here's the updated "zoom 1" graph: Yahoo groups: /tuning-math/files/Paul/zoomq.gif * [with cont.] sorry for all the harassment, paul
top of page bottom of page up

Previous Next

6000 6050 6100 6150 6200 6250 6300 6350 6400 6450 6500 6550 6600 6650 6700 6750 6800 6850 6900 6950

6450 - 6475 -

top of page