Carlos Alpha

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Carlos Alpha is the equal division of the just perfect fifth into nine parts of 77.9950 cents each (9ED3/2), corresponding to 15.3856 edo.

Theory

Article by Wendy Carlos

Carlos Alpha is very closely related to valentine temperament. For a list of 11-limit dyadic chords of Carlos Alpha, see Chords of valentine.

Intervals

Degrees Cents ~ Cents octave-reduced Approximate JI interval (11-limit)
0 0 1/1 (exact)
1 78
2 156 11/10, 12/11
3 234 8/7
4 312 6/5
5 390 5/4
6 468 21/16
7 546 11/8
8 624 10/7
9 702 3/2 (exact)
10 780 11/7
11 858
12 936 12/7
13 1014 9/5
14 1092 15/8
15 1170
16 1248 ~ 48
17 1326 ~ 126
18 1404 ~ 204 9/4 (exact)
19 1482 ~ 282
20 1560 ~ 360
21 1638 ~ 438
22 1716 ~ 516
23 1794 ~ 594
24 1872 ~ 672
25 1950 ~ 750
26 2028 ~ 828
27 2106 ~ 906
28 2184 ~ 984
29 2262 ~ 1062
30 2340 ~ 1140
31 2418 ~ 18
32 2496 ~ 96
33 2574 ~ 174
34 2652 ~ 252
35 2730 ~ 330
36 2808 ~ 408

Compositions

Bourdigal by Jean-Pierre Poulin

Alpha study 7 - melody study by Joel Grant Taylor

Alphablues by Carlo Serafini

Alphapanther by Carlo Serafini (blog entry)

Alphadesert by Carlo Serafini (blog entry)

AlphaDulcimer by Carlo Serafini (blog entry)

AlphaTherem Waltz by Carlo Serafini (blog entry)

Cubana Al Cubana Pha by Carlo Serafini (blog entry)

DisMLosphere - video by Carlo Serafini (blog entry)

Alpha El Din by Carlo Serafini (blog entry)

Alpha Choir by Carlo Serafini (blog entry)

Alpha Seems To Be The Hardest World by Carlo Serafini (blog entry)

Bossa Sbilenca by Carlo Serafini (blog entry)

Galactic Overload by Carlo Serafini (blog entry)

Alpha Rain (video) by Carlo Serafini (blog entry)

Alpha Delinquent by Carlo Serafini (blog entry)

Alpha Abstract 1 by Carlo Serafini (blog entry)

Miles of Space by Carlo Serafini (blog entry)

MacAtar (video) by Carlo Serafini (blog entry)

Fuzzy Logic by Carlo Serafini (blog entry)

Alpha Asana (video) by Carlo Serafini (blog entry)

Alpha Penguin Tanz (video) by Carlo Serafini (blog entry)

White Woman Speaks Up For #blacklivesmatter (video) by Carlo Serafini (blog entry)

Jayni's song by Carlo Serafini (blog entry)

01.03.12 W.C.a. by Omega9