7L 5s

Revision as of 19:50, 27 March 2021 by Flirora (talk | contribs) (+infobox)

This is the MOS pattern of the meantone chromatic scale, which is the only notable harmonic entropy minimum in this range of possible scales. In meantone, "diatonic" semitones (~16/15), such as appear in the diatonic scale, for example B-C, are larger than "chromatic" semitones (~25/24), the intervals by which flats and sharps alter pitches.

↖ 6L 4s ↑ 7L 4s 8L 4s ↗
← 6L 5s 7L 5s 8L 5s →
↙ 6L 6s ↓ 7L 6s 8L 6s ↘
Scale structure
Step pattern LLsLsLLsLsLs
sLsLsLLsLsLL
Equave 2/1 (1200.0 ¢)
Period 2/1 (1200.0 ¢)
Generator size
Bright 5\12 to 3\7 (500.0 ¢ to 514.3 ¢)
Dark 4\7 to 7\12 (685.7 ¢ to 700.0 ¢)
TAMNAMS information
Related to 5L 2s (diatonic)
With tunings 1:1 to 2:1 (soft-of-basic)
Related MOS scales
Parent 5L 2s
Sister 5L 7s
Daughters 12L 7s, 7L 12s
Neutralized 2L 10s
2-Flought 19L 5s, 7L 17s
Equal tunings
Equalized (L:s = 1:1) 5\12 (500.0 ¢)
Supersoft (L:s = 4:3) 18\43 (502.3 ¢)
Soft (L:s = 3:2) 13\31 (503.2 ¢)
Semisoft (L:s = 5:3) 21\50 (504.0 ¢)
Basic (L:s = 2:1) 8\19 (505.3 ¢)
Semihard (L:s = 5:2) 19\45 (506.7 ¢)
Hard (L:s = 3:1) 11\26 (507.7 ¢)
Superhard (L:s = 4:1) 14\33 (509.1 ¢)
Collapsed (L:s = 1:0) 3\7 (514.3 ¢)
ViewTalkEdit

The meantone chromatic scale is proper.

Generator in cents Comments
3\7 514.286
20\47 510.638
17\40 510
31\73 509.589
14\33 509.091
39\92 508.696
25\59 508.475
36\85 508.235
507.934 L/s = pi
11\26 507.692 Flattone
41\97 507.216 Flattone
507.151 L/s = e
30\71 507.042 Flattone
506.9365 L/s = phi+1
49\116 506.897 Flattone
19\45 506.667 Flattone
46\109 506.422 Flattone
27\64 506.25 Flattone
35\83 506.024
8\19 505.263 Boundary of propriety: generators smaller than this are proper.

Meanenneadecal; L/s = 2

37\88 504.5455
504.507 Lucy Tuning
29\69 504.348
504.275 L/s = sqrt(3)
50\119 504.202
21\50 504 Meantone / Meanpop
55\131 503.817 Golden meantone
503.7855 L/s = phi
34\81 503.704 Optimal meantone is around here
47\112 503.571 Meantone / Meanpop
503.5685 L/s = pi/2
13\31 503.226 Optimal rank range (L/s = 3/2)
44\105 502.857 Meantone / Huygens
31\74 502.703 Meantone / Huygens
49\117 502.564
18\43 502.326 Meantone / Meridetone
41\98 502.041
23\55 501.818
28\67 501.493
5\12 500