Carlos Beta: Difference between revisions
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'''Carlos Beta''' is | {{Wikipedia|Beta scale}} | ||
'''Carlos Beta''' is a non-octave [[equal temperament]] invented by [[Wendy Carlos]], with step size about 63.833{{cent}}, or almost exactly every fifth step of [[94edo]]. In this temperament, the interval of 11 steps approximates [[3/2]], that of 6 steps approximates [[5/4]], and that of 5 steps approximates [[6/5]]. | |||
==Theory== | == Theory == | ||
Carlos | Carlos provided the tuning of 63.8{{cent}}<ref>Wendy Carlos, "Tuning: At the Crossroads", ''Computer Music Journal'', vol. 11 no. 1, 1987, pp. 29-43</ref><ref>Wendy Carlos, ''Three Asymmetric Divisions of the Octave''. </ref>. Based on her work, Dave Benson optimized the temperament for 3/2, 5/4, and 6/5, such that the tuning divides the octave in | ||
<math>\displaystyle | |||
\frac{11^2 + 6^2 + 5^2}{11\log_2(3/2) + 6\log_2(5/4) + 5\log_2(6/5)} ≃ 18.799074 | |||
</math> | |||
==Intervals== | equal steps and the fifth in 10.996753 equal steps of 63.832933{{cent}} each<ref>Dave Benson, ''Music: A Mathematical Offering'', pp. 232-233.</ref>. It is thus very close to the [[EDF|equal division of the just perfect fifth]] into eleven parts of 63.8141{{cent}} each ([[11edf|11ed3/2]]), corresponding to 18.8046[[edo]]. | ||
Carlos Beta is related to the [[sycamore family]] of temperaments – betic and [[5-limit]] sycamore in particular. | |||
Lookalikes: [[19edo]], [[11edf]], [[30edt]], every 5th step of [[94edo]], every 4th step of [[75edo]] | |||
== Intervals == | |||
{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
! Degrees | |||
! Cents ~ Cents [[octave reduced]] | |||
! Approximate JI interval ~ octave reduced | |||
|- | |- | ||
| 0 | |||
| 0 | |||
| | |||
|- | |- | ||
| | 1 | | | 1 | ||
| | | | | 63.832933 | ||
| | | | | | ||
|- | |- | ||
| | 2 | | | 2 | ||
| | | | | 127.665865 | ||
| | | | | | ||
|- | |- | ||
| | 3 | | | 3 | ||
| | 191 | | | 191.498798 | ||
| | | | | | ||
|- | |- | ||
| | 4 | | | 4 | ||
| | 255 | | | 255.331730 | ||
| | | | | | ||
|- | |- | ||
| | 5 | | | 5 | ||
| | 319 | | | 319.164663 | ||
| | 6/5 | | | [[6/5]] | ||
|- | |- | ||
| | 6 | | | 6 | ||
| | | | | 382.997595 | ||
| | 5/4 | | | [[5/4]] | ||
|- | |- | ||
| | 7 | | | 7 | ||
| | | | | 446.830528 | ||
| | | | | | ||
|- | |- | ||
| | 8 | | | 8 | ||
| | 510. | | | 510.663461 | ||
| | | | | | ||
|- | |- | ||
| | 9 | | | 9 | ||
| | 574 | | | 574.496393 | ||
| | | | | | ||
|- | |- | ||
| | 10 | | | 10 | ||
| | 638 | | | 638.329326 | ||
|- | |- | ||
| | 11 | | | 11 | ||
| | 702 | | | 702.162258 | ||
| | 3/2 | | | [[3/2]] | ||
|- | |- | ||
| | 12 | | | 12 | ||
| | | | | 765.995191 | ||
| | | | | | ||
|- | |- | ||
| | 13 | | | 13 | ||
| | | | | 829.828123 | ||
| | 13/8-ish | | | [[13/8]]-ish | ||
|- | |- | ||
| | 14 | | | 14 | ||
| | 893 | | | 893.661056 | ||
| | | | | | ||
|- | |- | ||
| | 15 | | | 15 | ||
| | 957 | | | 957.493989 | ||
| | | | | | ||
|- | |- | ||
| | 16 | | | 16 | ||
| | 1021 | | | 1021.326921 | ||
| | | | | | ||
|- | |- | ||
| | 17 | | | 17 | ||
| | 1085 | | | 1085.159854 | ||
| | 15/8 | | | [[15/8]] | ||
|- | |- | ||
| | 18 | | | 18 | ||
| | | | | 1148.992786 | ||
| | | | | | ||
|- | |- | ||
| | 19 | | | 19 | ||
| | | | | 1212.825719 ~ 12.825719 | ||
| | 2/1-ish | | | [[2/1]]-ish | ||
|- | |- | ||
| | 20 | | | 20 | ||
| | 1276 ~ 76 | | | 1276.658651 ~ 76.658651 | ||
| | | | | | ||
|- | |- | ||
| | 21 | | | 21 | ||
| | 1340 ~ 140 | | | 1340.491584 ~ 140.491584 | ||
| | | | | | ||
|- | |- | ||
| | 22 | | | 22 | ||
| | 1404 ~ 204 | | | 1404.324517 ~ 204.324517 | ||
| | 9/4~9/8 | | | [[9/4]]~[[9/8]] | ||
|- | |- | ||
| | 23 | | | 23 | ||
| | 1468 ~ 268 | | | 1468.157449 ~ 268.157449 | ||
| | better 7/6 | | | better [[7/6]] | ||
|- | |- | ||
| | 24 | | | 24 | ||
| | | | | 1531.990382 ~ 331.990382 | ||
| | | | | | ||
|- | |- | ||
| | 25 | | | 25 | ||
| | 1595 ~ 395 | | | 1595.823314 ~ 395.823314 | ||
| | |||
|- | |- | ||
| | 26 | | | 26 | ||
| | 1659 ~ 459 | | | 1659.656247 ~ 459.656247 | ||
| | |||
|- | |- | ||
| | 27 | | | 27 | ||
| | 1723 ~ 523 | | | 1723.489179 ~ 523.489179 | ||
|- | |- | ||
| | 28 | | | 28 | ||
| | 1787 ~ 587 | | | 1787.322112 ~ 587.322112 | ||
| | |||
|- | |- | ||
| | 29 | | | 29 | ||
| | 1851 ~ 651 | | | 1851.155045 ~ 651.155045 | ||
| | |||
|- | |- | ||
| | 30 | | | 30 | ||
| | 1914 ~ 714 | | | 1914.987977 ~ 714.987977 | ||
| | |||
|- | |- | ||
| | 31 | | | 31 | ||
| | 1978 ~ 778 | | | 1978.820910 ~ 778.820910 | ||
| | |||
|- | |- | ||
| | 32 | | | 32 | ||
| | 2042 ~ 842 | | | 2042.653842 ~ 842.653842 | ||
| | 13/4 ~ 13/8 (better) | | | [[13/4]] ~ [[13/8]] (better) | ||
|- | |- | ||
| | 33 | | | 33 | ||
| | 2106 ~ 906 | | | 2106.486775 ~ 906.486775 | ||
| | |||
|- | |- | ||
| | 34 | | | 34 | ||
| | 2170 ~ 970 | | | 2170.319707 ~ 970.319707 | ||
| | |||
|- | |- | ||
| | 35 | | | 35 | ||
| | | | | 2234.152640 ~ 1034.152640 | ||
| | |||
|- | |- | ||
| | 36 | | | 36 | ||
| | 2297 ~ 1097 | | | 2297.985573 ~ 1097.985573 | ||
| | |||
|} | |} | ||
== Music == | |||
{{Catrel| Carlos Beta tracks }} | |||
[ | ; [[Bryan Deister]] | ||
* [https://www.youtube.com/watch?v=8qydnXzkbgg ''Come''] (2022) – Carlos Beta version | |||
* [https://www.youtube.com/shorts/bqbwHuBJHJQ ''Microtonal Improvisation in Carlos Beta''] (2023) | |||
[ | ; [[Omega9|Omega9 & MÜÜR]] | ||
* ''Elirejo de tempo'' – [https://www.youtube.com/watch?v=qWXeoVCxL5k YouTube] | [https://blend.io/project/5e0459e6573b324b537f3682 Multitrack] | |||
* ''Cærulea'' – [https://www.youtube.com/watch?v=NBfW6LC-Vec YouTube] | [https://blend.io/project/5e0459e61a4f113326352b85 Multitrack] | |||
* ''Tempo kaj Ĥrono'' – [https://www.youtube.com/watch?v=OfQwGcJjMAo YouTube] | [https://blend.io/project/5e045a48f24d7af73aa4edf4 Multitrack] | |||
*''Tionmifarosalmimemkelkfoje'' (2012) – [https://web.archive.org/web/20201127015039/http://micro.soonlabel.com/gene_ward_smith/Others/Omega9/Omega9%20-%20Tionmifarosalmimemkelkfoje.mp3 play] | [https://www.youtube.com/watch?v=eWgb-ZbgvJI YouTube] | |||
* ''Cordas'' (2012) – [https://web.archive.org/web/20201127015302/http://micro.soonlabel.com/gene_ward_smith/Others/Omega9/Omega9%20-%20Cordas%20(Carlos%20Beta).mp3 play] | [https://omega9.bandcamp.com/track/cordas-carlos-beta Bandcamp] | [https://www.youtube.com/watch?v=-fwA6egaqc4 YouTube] – Carlos Beta version | |||
[http://www. | ; [[Carlo Serafini]] | ||
* ''The Dawn Of Beta'' (2011) – [http://www.seraph.it/dep/det/DawnOfBeta.mp3 play] | [http://www.seraph.it/blog_files/ca97598d4d95438f8cf18862e7f13222-87.html blog] | |||
* ''Lonely Beta Woman'' (2011) – [http://www.seraph.it/dep/det/LonelyBetaWoman.mp3 play] | [http://www.seraph.it/blog_files/0915d7768cbd1948d46bd63e9060ef12-88.html blog] | |||
* ''Over The Beta Rainbow'' (2011) – [http://www.seraph.it/dep/det/OverTheBetaRainbow.mp3 play] | [http://www.seraph.it/blog_files/c498a163495a549dbc2711691061db11-92.html blog] | |||
* ''Tribalism #2'' (2011) – [http://www.seraph.it/dep/det/Tribalism2.mp3 play] | [http://www.seraph.it/blog_files/e516a6726f78b7c6232b0869222507ff-95.html blog] | |||
* ''Beta Easter(n)'' (2011) – [http://www.seraph.it/blog_files/9d774615381a06e228b7de11a9394562-97.html blog] | [https://youtu.be/6yBY2AvsUOA3 YouTube] | |||
* ''tiBETAn Dreams'' (2011) – [http://www.seraph.it/dep/det/tiBETAnDreams.mp3 play] | [http://www.seraph.it/blog_files/7f1eb6f7799c4f90d796396cbade30ce-98.html blog #1][http://www.seraph.it/blog_files/9029519d60cf978db21549a608ef4ea3-99.html blog #2] | |||
* ''Angela B.'' (2011) – [http://www.seraph.it/dep/det/Angela.mp3 play] | [http://www.seraph.it/blog_files/2edec68ea23551591ff1c0d897e1f8fa-101.html blog] | |||
* ''UGDoLA'' (2011) – [http://www.seraph.it/blog_files/6d6dcd64d5d817366c5608edfbed16b6-102.html blog] | [https://www.youtube.com/watch?v=mghWWIUjh9o YouTube] | |||
* ''Austrian Fantasy'' (2011) – [http://www.seraph.it/blog_files/49d276aa03bebbf3a0c831f0bc3bdea5-107.html blog] | [https://youtu.be/v4F38G4XKLc YouTube] | |||
; [[MagentaFlavouredMusic]] | |||
* [https://youtu.be/1HkykxbKBHE ''Carlama''] | |||
[ | == See also == | ||
* [[Mason Green's New Common Practice Notation]] | |||
* Carlos' equal scales | |||
** [[Carlos Alpha]] | |||
** [[Carlos Gamma]] | |||
* [[Carlos harm|Carlos Harmonic]] | |||
* [[Carlos super|Carlos Super Just]] | |||
== References == | |||
<references/> | |||
[http://www. | == External links == | ||
* [http://www.wendycarlos.com/resources/pitch.html Wendy Carlos Pitch article | ''Three Asymmetric Divisions of the Octave''] ([http://www.webcitation.org/5xelDVVBj Permalink]) | |||
[[Category:Wendy Carlos]] | |||
[[Category:Carlos]] | |||
[[Category:Nonoctave]] | [[Category:Nonoctave]] | ||
[[Category: | [[Category:Equal-step tuning]] | ||
[[Category:Listen]] | [[Category:Listen]] | ||
{{Todo| cleanup | expand }} |
Latest revision as of 07:13, 28 April 2025
Carlos Beta is a non-octave equal temperament invented by Wendy Carlos, with step size about 63.833 ¢, or almost exactly every fifth step of 94edo. In this temperament, the interval of 11 steps approximates 3/2, that of 6 steps approximates 5/4, and that of 5 steps approximates 6/5.
Theory
Carlos provided the tuning of 63.8 ¢[1][2]. Based on her work, Dave Benson optimized the temperament for 3/2, 5/4, and 6/5, such that the tuning divides the octave in
[math]\displaystyle{ \displaystyle \frac{11^2 + 6^2 + 5^2}{11\log_2(3/2) + 6\log_2(5/4) + 5\log_2(6/5)} ≃ 18.799074 }[/math]
equal steps and the fifth in 10.996753 equal steps of 63.832933 ¢ each[3]. It is thus very close to the equal division of the just perfect fifth into eleven parts of 63.8141 ¢ each (11ed3/2), corresponding to 18.8046edo.
Carlos Beta is related to the sycamore family of temperaments – betic and 5-limit sycamore in particular.
Lookalikes: 19edo, 11edf, 30edt, every 5th step of 94edo, every 4th step of 75edo
Intervals
Degrees | Cents ~ Cents octave reduced | Approximate JI interval ~ octave reduced |
---|---|---|
0 | 0 | |
1 | 63.832933 | |
2 | 127.665865 | |
3 | 191.498798 | |
4 | 255.331730 | |
5 | 319.164663 | 6/5 |
6 | 382.997595 | 5/4 |
7 | 446.830528 | |
8 | 510.663461 | |
9 | 574.496393 | |
10 | 638.329326 | |
11 | 702.162258 | 3/2 |
12 | 765.995191 | |
13 | 829.828123 | 13/8-ish |
14 | 893.661056 | |
15 | 957.493989 | |
16 | 1021.326921 | |
17 | 1085.159854 | 15/8 |
18 | 1148.992786 | |
19 | 1212.825719 ~ 12.825719 | 2/1-ish |
20 | 1276.658651 ~ 76.658651 | |
21 | 1340.491584 ~ 140.491584 | |
22 | 1404.324517 ~ 204.324517 | 9/4~9/8 |
23 | 1468.157449 ~ 268.157449 | better 7/6 |
24 | 1531.990382 ~ 331.990382 | |
25 | 1595.823314 ~ 395.823314 | |
26 | 1659.656247 ~ 459.656247 | |
27 | 1723.489179 ~ 523.489179 | |
28 | 1787.322112 ~ 587.322112 | |
29 | 1851.155045 ~ 651.155045 | |
30 | 1914.987977 ~ 714.987977 | |
31 | 1978.820910 ~ 778.820910 | |
32 | 2042.653842 ~ 842.653842 | 13/4 ~ 13/8 (better) |
33 | 2106.486775 ~ 906.486775 | |
34 | 2170.319707 ~ 970.319707 | |
35 | 2234.152640 ~ 1034.152640 | |
36 | 2297.985573 ~ 1097.985573 |
Music
- See also: Category:Carlos Beta tracks
- Come (2022) – Carlos Beta version
- Microtonal Improvisation in Carlos Beta (2023)
- Elirejo de tempo – YouTube | Multitrack
- Cærulea – YouTube | Multitrack
- Tempo kaj Ĥrono – YouTube | Multitrack
- Tionmifarosalmimemkelkfoje (2012) – play | YouTube
- Cordas (2012) – play | Bandcamp | YouTube – Carlos Beta version
- The Dawn Of Beta (2011) – play | blog
- Lonely Beta Woman (2011) – play | blog
- Over The Beta Rainbow (2011) – play | blog
- Tribalism #2 (2011) – play | blog
- Beta Easter(n) (2011) – blog | YouTube
- tiBETAn Dreams (2011) – play | blog #1blog #2
- Angela B. (2011) – play | blog
- UGDoLA (2011) – blog | YouTube
- Austrian Fantasy (2011) – blog | YouTube
See also
- Mason Green's New Common Practice Notation
- Carlos' equal scales
- Carlos Harmonic
- Carlos Super Just