12L 5s: Difference between revisions

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→Scale tree: leapday is optimal around 46edo. Misc. cleanup
→Scale tree: +gracecordial
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9/2: [[Pontiac]];  
9/2: [[Pontiac]];  
5/1: [[Photia]];  
5/1: [[Photia]];  
6/1: ↓ [[Grackle]]
6/1: ↓ [[Grackle]], ↓↓ [[gracecordial]];
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}}


[[Category:17-tone scales]]
[[Category:17-tone scales]]
[[Category:Mega chromatic scales]]
[[Category:Mega chromatic scales]]

Revision as of 14:18, 2 December 2024

↖ 11L 4s ↑ 12L 4s 13L 4s ↗
← 11L 5s 12L 5s 13L 5s →
↙ 11L 6s ↓ 12L 6s 13L 6s ↘ 
┌╥╥╥┬╥╥┬╥╥╥┬╥╥┬╥╥┬┐
│║║║│║║│║║║│║║│║║││
│││││││││││││││││││
└┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┘
Scale structure
Step pattern LLLsLLsLLLsLLsLLs
sLLsLLsLLLsLLsLLL
Equave 2/1 (1200.0 ¢)
Period 2/1 (1200.0 ¢)
Generator size
Bright 7\17 to 5\12 (494.1 ¢ to 500.0 ¢)
Dark 7\12 to 10\17 (700.0 ¢ to 705.9 ¢)
TAMNAMS information
Related to 5L 2s (diatonic)
With tunings 2:1 to 3:1 (hypohard)
Related MOS scales
Parent 5L 7s
Sister 5L 12s
Daughters 17L 12s, 12L 17s
Neutralized 7L 10s
2-Flought 29L 5s, 12L 22s
Equal tunings
Equalized (L:s = 1:1) 7\17 (494.1 ¢)
Supersoft (L:s = 4:3) 26\63 (495.2 ¢)
Soft (L:s = 3:2) 19\46 (495.7 ¢)
Semisoft (L:s = 5:3) 31\75 (496.0 ¢)
Basic (L:s = 2:1) 12\29 (496.6 ¢)
Semihard (L:s = 5:2) 29\70 (497.1 ¢)
Hard (L:s = 3:1) 17\41 (497.6 ¢)
Superhard (L:s = 4:1) 22\53 (498.1 ¢)
Collapsed (L:s = 1:0) 5\12 (500.0 ¢)

12L 5s, also called p-enharmonic, is a 2/1-equivalent (octave-equivalent) moment of symmetry scale containing 12 large steps and 5 small steps, repeating every octave. 12L 5s is a grandchild scale of 5L 2s, expanding it by 10 tones. Generators that produce this scale range from 494.1 ¢ to 500 ¢, or from 700 ¢ to 705.9 ¢. Temperaments supported by this scale include those under the Pythagorean and schismic families, characterized by a diesis (the difference between a large step and two small steps) that is smaller than the chroma.

The leapday/leapweek version is proper, but the Pythagorean/schismic version is improper (it does not become proper until you add 12 more notes to form the schismic 29-note scale).

Intervals

Intervals of 12L 5s
Intervals Steps
subtended 		Range in cents
Generic Specific Abbrev.
0-mosstep Perfect 0-mosstep P0ms 0 0.0 ¢
1-mosstep Minor 1-mosstep m1ms s 0.0 ¢ to 70.6 ¢
Major 1-mosstep M1ms L 70.6 ¢ to 100.0 ¢
2-mosstep Minor 2-mosstep m2ms L + s 100.0 ¢ to 141.2 ¢
Major 2-mosstep M2ms 2L 141.2 ¢ to 200.0 ¢
3-mosstep Minor 3-mosstep m3ms 2L + s 200.0 ¢ to 211.8 ¢
Major 3-mosstep M3ms 3L 211.8 ¢ to 300.0 ¢
4-mosstep Minor 4-mosstep m4ms 2L + 2s 200.0 ¢ to 282.4 ¢
Major 4-mosstep M4ms 3L + s 282.4 ¢ to 300.0 ¢
5-mosstep Minor 5-mosstep m5ms 3L + 2s 300.0 ¢ to 352.9 ¢
Major 5-mosstep M5ms 4L + s 352.9 ¢ to 400.0 ¢
6-mosstep Minor 6-mosstep m6ms 4L + 2s 400.0 ¢ to 423.5 ¢
Major 6-mosstep M6ms 5L + s 423.5 ¢ to 500.0 ¢
7-mosstep Diminished 7-mosstep d7ms 4L + 3s 400.0 ¢ to 494.1 ¢
Perfect 7-mosstep P7ms 5L + 2s 494.1 ¢ to 500.0 ¢
8-mosstep Minor 8-mosstep m8ms 5L + 3s 500.0 ¢ to 564.7 ¢
Major 8-mosstep M8ms 6L + 2s 564.7 ¢ to 600.0 ¢
9-mosstep Minor 9-mosstep m9ms 6L + 3s 600.0 ¢ to 635.3 ¢
Major 9-mosstep M9ms 7L + 2s 635.3 ¢ to 700.0 ¢
10-mosstep Perfect 10-mosstep P10ms 7L + 3s 700.0 ¢ to 705.9 ¢
Augmented 10-mosstep A10ms 8L + 2s 705.9 ¢ to 800.0 ¢
11-mosstep Minor 11-mosstep m11ms 7L + 4s 700.0 ¢ to 776.5 ¢
Major 11-mosstep M11ms 8L + 3s 776.5 ¢ to 800.0 ¢
12-mosstep Minor 12-mosstep m12ms 8L + 4s 800.0 ¢ to 847.1 ¢
Major 12-mosstep M12ms 9L + 3s 847.1 ¢ to 900.0 ¢
13-mosstep Minor 13-mosstep m13ms 9L + 4s 900.0 ¢ to 917.6 ¢
Major 13-mosstep M13ms 10L + 3s 917.6 ¢ to 1000.0 ¢
14-mosstep Minor 14-mosstep m14ms 9L + 5s 900.0 ¢ to 988.2 ¢
Major 14-mosstep M14ms 10L + 4s 988.2 ¢ to 1000.0 ¢
15-mosstep Minor 15-mosstep m15ms 10L + 5s 1000.0 ¢ to 1058.8 ¢
Major 15-mosstep M15ms 11L + 4s 1058.8 ¢ to 1100.0 ¢
16-mosstep Minor 16-mosstep m16ms 11L + 5s 1100.0 ¢ to 1129.4 ¢
Major 16-mosstep M16ms 12L + 4s 1129.4 ¢ to 1200.0 ¢
17-mosstep Perfect 17-mosstep P17ms 12L + 5s 1200.0 ¢

Modes

Scale degrees of the modes of 12L 5s
UDP Cyclic
order 		Step
pattern 		Scale degree (mosdegree)
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
16|0 1 LLLsLLsLLLsLLsLLs Perf. Maj. Maj. Maj. Maj. Maj. Maj. Perf. Maj. Maj. Aug. Maj. Maj. Maj. Maj. Maj. Maj. Perf.
15|1 8 LLLsLLsLLsLLLsLLs Perf. Maj. Maj. Maj. Maj. Maj. Maj. Perf. Maj. Maj. Perf. Maj. Maj. Maj. Maj. Maj. Maj. Perf.
14|2 15 LLsLLLsLLsLLLsLLs Perf. Maj. Maj. Min. Maj. Maj. Maj. Perf. Maj. Maj. Perf. Maj. Maj. Maj. Maj. Maj. Maj. Perf.
13|3 5 LLsLLLsLLsLLsLLLs Perf. Maj. Maj. Min. Maj. Maj. Maj. Perf. Maj. Maj. Perf. Maj. Maj. Min. Maj. Maj. Maj. Perf.
12|4 12 LLsLLsLLLsLLsLLLs Perf. Maj. Maj. Min. Maj. Maj. Min. Perf. Maj. Maj. Perf. Maj. Maj. Min. Maj. Maj. Maj. Perf.
11|5 2 LLsLLsLLLsLLsLLsL Perf. Maj. Maj. Min. Maj. Maj. Min. Perf. Maj. Maj. Perf. Maj. Maj. Min. Maj. Maj. Min. Perf.
10|6 9 LLsLLsLLsLLLsLLsL Perf. Maj. Maj. Min. Maj. Maj. Min. Perf. Maj. Min. Perf. Maj. Maj. Min. Maj. Maj. Min. Perf.
9|7 16 LsLLLsLLsLLLsLLsL Perf. Maj. Min. Min. Maj. Maj. Min. Perf. Maj. Min. Perf. Maj. Maj. Min. Maj. Maj. Min. Perf.
8|8 6 LsLLLsLLsLLsLLLsL Perf. Maj. Min. Min. Maj. Maj. Min. Perf. Maj. Min. Perf. Maj. Min. Min. Maj. Maj. Min. Perf.
7|9 13 LsLLsLLLsLLsLLLsL Perf. Maj. Min. Min. Maj. Min. Min. Perf. Maj. Min. Perf. Maj. Min. Min. Maj. Maj. Min. Perf.
6|10 3 LsLLsLLLsLLsLLsLL Perf. Maj. Min. Min. Maj. Min. Min. Perf. Maj. Min. Perf. Maj. Min. Min. Maj. Min. Min. Perf.
5|11 10 LsLLsLLsLLLsLLsLL Perf. Maj. Min. Min. Maj. Min. Min. Perf. Min. Min. Perf. Maj. Min. Min. Maj. Min. Min. Perf.
4|12 17 sLLLsLLsLLLsLLsLL Perf. Min. Min. Min. Maj. Min. Min. Perf. Min. Min. Perf. Maj. Min. Min. Maj. Min. Min. Perf.
3|13 7 sLLLsLLsLLsLLLsLL Perf. Min. Min. Min. Maj. Min. Min. Perf. Min. Min. Perf. Min. Min. Min. Maj. Min. Min. Perf.
2|14 14 sLLsLLLsLLsLLLsLL Perf. Min. Min. Min. Min. Min. Min. Perf. Min. Min. Perf. Min. Min. Min. Maj. Min. Min. Perf.
1|15 4 sLLsLLLsLLsLLsLLL Perf. Min. Min. Min. Min. Min. Min. Perf. Min. Min. Perf. Min. Min. Min. Min. Min. Min. Perf.
0|16 11 sLLsLLsLLLsLLsLLL Perf. Min. Min. Min. Min. Min. Min. Dim. Min. Min. Perf. Min. Min. Min. Min. Min. Min. Perf.

Proposed tuning-specific names

Declan Paul Boushy has proposed names for these modes corresponding to step ratios 3:1 and 4:1.

Scales

Scale tree

Template:Scale tree

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