13L 2s (3/1-equivalent)

13L 2s⟨3/1⟩ is a 3/1-equivalent (tritave-equivalent) moment of symmetry scale containing 13 large steps and 2 small steps, repeating every interval of 3/1 (1902.0 ¢). Generators that produce this scale range from 1014.4 ¢ to 1024.1 ¢, or from 877.8 ¢ to 887.6 ¢.

↖ 12L 1s⟨3/1⟩ ↑ 13L 1s⟨3/1⟩ 14L 1s⟨3/1⟩ ↗
← 12L 2s⟨3/1⟩ 13L 2s (3/1-equivalent) 14L 2s⟨3/1⟩ →
↙ 12L 3s⟨3/1⟩ ↓ 13L 3s⟨3/1⟩ 14L 3s⟨3/1⟩ ↘
Scale structure
Step pattern LLLLLLLsLLLLLLs
sLLLLLLsLLLLLLL
Equave 3/1 (1902.0 ¢)
Period 3/1 (1902.0 ¢)
Generator size(edt)
Bright 8\15 to 7\13 (1014.4 ¢ to 1024.1 ¢)
Dark 6\13 to 7\15 (877.8 ¢ to 887.6 ¢)
Related MOS scales
Parent 2L 11s⟨3/1⟩
Sister 2L 13s⟨3/1⟩
Daughters 15L 13s⟨3/1⟩, 13L 15s⟨3/1⟩
Neutralized 11L 4s⟨3/1⟩
2-Flought 28L 2s⟨3/1⟩, 13L 17s⟨3/1⟩
Equal tunings(edt)
Equalized (L:s = 1:1) 8\15 (1014.4 ¢)
Supersoft (L:s = 4:3) 31\58 (1016.6 ¢)
Soft (L:s = 3:2) 23\43 (1017.3 ¢)
Semisoft (L:s = 5:3) 38\71 (1017.9 ¢)
Basic (L:s = 2:1) 15\28 (1018.9 ¢)
Semihard (L:s = 5:2) 37\69 (1019.9 ¢)
Hard (L:s = 3:1) 22\41 (1020.6 ¢)
Superhard (L:s = 4:1) 29\54 (1021.4 ¢)
Collapsed (L:s = 1:0) 7\13 (1024.1 ¢)
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This MOS scale pattern is most notable for corresponding to the 15-note 3.5 subgroup scale generated by a just 5/3, which has an L:s ratio of approximately 1.57. In this case, the large step represents 27/25 and the small step represents 1220703125/1162261467. It is the smallest MOS generated by the 3.5 subgroup which does not have 2 large steps, and the smallest in which the entire range of generators can reasonably be taken as an approximation of 5/3.

Tritave-equivalent temperaments generated by a near-just or slightly flat 5/3 will also produce this MOS scale. The 3.5.11 subgroup microtemperament delta centauri (which is generated by a near-just ~5/3 such that 9 generators stacked represent ~11/9) has this as its 15-note MOS scale. Interestingly, the chroma (L-s) represents 125/121 in this case. If you want the high accuracy offered by this temperament then a ~5/3 generator between 15\28edt and 23\43edt is best (corresponding to L:s between 3:2 and 2:1).

The most optimized tunings of Arcturus temperament have the ~5/3 slightly sharper than in 13edt and thus generate this MOS, but Arcturus has a quite wide range of reasonable generators so it is not a given that it will generate this MOS.

Scale properties

This article uses TAMNAMS conventions for the names of this scale's intervals and scale degrees. The use of 1-indexed ordinal names is reserved for interval regions.

Intervals

Intervals of 13L 2s⟨3/1⟩
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 126.8 ¢
Major 1-mosstep M1ms L 126.8 ¢ to 146.3 ¢
2-mosstep Minor 2-mosstep m2ms L + s 146.3 ¢ to 253.6 ¢
Major 2-mosstep M2ms 2L 253.6 ¢ to 292.6 ¢
3-mosstep Minor 3-mosstep m3ms 2L + s 292.6 ¢ to 380.4 ¢
Major 3-mosstep M3ms 3L 380.4 ¢ to 438.9 ¢
4-mosstep Minor 4-mosstep m4ms 3L + s 438.9 ¢ to 507.2 ¢
Major 4-mosstep M4ms 4L 507.2 ¢ to 585.2 ¢
5-mosstep Minor 5-mosstep m5ms 4L + s 585.2 ¢ to 634.0 ¢
Major 5-mosstep M5ms 5L 634.0 ¢ to 731.5 ¢
6-mosstep Minor 6-mosstep m6ms 5L + s 731.5 ¢ to 760.8 ¢
Major 6-mosstep M6ms 6L 760.8 ¢ to 877.8 ¢
7-mosstep Perfect 7-mosstep P7ms 6L + s 877.8 ¢ to 887.6 ¢
Augmented 7-mosstep A7ms 7L 887.6 ¢ to 1024.1 ¢
8-mosstep Diminished 8-mosstep d8ms 6L + 2s 877.8 ¢ to 1014.4 ¢
Perfect 8-mosstep P8ms 7L + s 1014.4 ¢ to 1024.1 ¢
9-mosstep Minor 9-mosstep m9ms 7L + 2s 1024.1 ¢ to 1141.2 ¢
Major 9-mosstep M9ms 8L + s 1141.2 ¢ to 1170.4 ¢
10-mosstep Minor 10-mosstep m10ms 8L + 2s 1170.4 ¢ to 1268.0 ¢
Major 10-mosstep M10ms 9L + s 1268.0 ¢ to 1316.7 ¢
11-mosstep Minor 11-mosstep m11ms 9L + 2s 1316.7 ¢ to 1394.8 ¢
Major 11-mosstep M11ms 10L + s 1394.8 ¢ to 1463.0 ¢
12-mosstep Minor 12-mosstep m12ms 10L + 2s 1463.0 ¢ to 1521.6 ¢
Major 12-mosstep M12ms 11L + s 1521.6 ¢ to 1609.3 ¢
13-mosstep Minor 13-mosstep m13ms 11L + 2s 1609.3 ¢ to 1648.4 ¢
Major 13-mosstep M13ms 12L + s 1648.4 ¢ to 1755.7 ¢
14-mosstep Minor 14-mosstep m14ms 12L + 2s 1755.7 ¢ to 1775.2 ¢
Major 14-mosstep M14ms 13L + s 1775.2 ¢ to 1902.0 ¢
15-mosstep Perfect 15-mosstep P15ms 13L + 2s 1902.0 ¢

Generator chain

Generator chain of 13L 2s⟨3/1⟩
Bright gens Scale degree Abbrev.
27 Augmented 6-mosdegree A6md
26 Augmented 13-mosdegree A13md
25 Augmented 5-mosdegree A5md
24 Augmented 12-mosdegree A12md
23 Augmented 4-mosdegree A4md
22 Augmented 11-mosdegree A11md
21 Augmented 3-mosdegree A3md
20 Augmented 10-mosdegree A10md
19 Augmented 2-mosdegree A2md
18 Augmented 9-mosdegree A9md
17 Augmented 1-mosdegree A1md
16 Augmented 8-mosdegree A8md
15 Augmented 0-mosdegree A0md
14 Augmented 7-mosdegree A7md
13 Major 14-mosdegree M14md
12 Major 6-mosdegree M6md
11 Major 13-mosdegree M13md
10 Major 5-mosdegree M5md
9 Major 12-mosdegree M12md
8 Major 4-mosdegree M4md
7 Major 11-mosdegree M11md
6 Major 3-mosdegree M3md
5 Major 10-mosdegree M10md
4 Major 2-mosdegree M2md
3 Major 9-mosdegree M9md
2 Major 1-mosdegree M1md
1 Perfect 8-mosdegree P8md
0 Perfect 0-mosdegree
Perfect 15-mosdegree
P0md
P15md
−1 Perfect 7-mosdegree P7md
−2 Minor 14-mosdegree m14md
−3 Minor 6-mosdegree m6md
−4 Minor 13-mosdegree m13md
−5 Minor 5-mosdegree m5md
−6 Minor 12-mosdegree m12md
−7 Minor 4-mosdegree m4md
−8 Minor 11-mosdegree m11md
−9 Minor 3-mosdegree m3md
−10 Minor 10-mosdegree m10md
−11 Minor 2-mosdegree m2md
−12 Minor 9-mosdegree m9md
−13 Minor 1-mosdegree m1md
−14 Diminished 8-mosdegree d8md
−15 Diminished 15-mosdegree d15md
−16 Diminished 7-mosdegree d7md
−17 Diminished 14-mosdegree d14md
−18 Diminished 6-mosdegree d6md
−19 Diminished 13-mosdegree d13md
−20 Diminished 5-mosdegree d5md
−21 Diminished 12-mosdegree d12md
−22 Diminished 4-mosdegree d4md
−23 Diminished 11-mosdegree d11md
−24 Diminished 3-mosdegree d3md
−25 Diminished 10-mosdegree d10md
−26 Diminished 2-mosdegree d2md
−27 Diminished 9-mosdegree d9md

Modes

Modes of 13L 2s⟨3/1⟩
UDP Cyclic
order
Step
pattern
14|0 1 LLLLLLLsLLLLLLs
13|1 9 LLLLLLsLLLLLLLs
12|2 2 LLLLLLsLLLLLLsL
11|3 10 LLLLLsLLLLLLLsL
10|4 3 LLLLLsLLLLLLsLL
9|5 11 LLLLsLLLLLLLsLL
8|6 4 LLLLsLLLLLLsLLL
7|7 12 LLLsLLLLLLLsLLL
6|8 5 LLLsLLLLLLsLLLL
5|9 13 LLsLLLLLLLsLLLL
4|10 6 LLsLLLLLLsLLLLL
3|11 14 LsLLLLLLLsLLLLL
2|12 7 LsLLLLLLsLLLLLL
1|13 15 sLLLLLLLsLLLLLL
0|14 8 sLLLLLLsLLLLLLL
Scale degrees of the modes of 13L 2s⟨3/1⟩
UDP Cyclic
order
Step
pattern
Scale degree (mosdegree)
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
14|0 1 LLLLLLLsLLLLLLs Perf. Maj. Maj. Maj. Maj. Maj. Maj. Aug. Perf. Maj. Maj. Maj. Maj. Maj. Maj. Perf.
13|1 9 LLLLLLsLLLLLLLs Perf. Maj. Maj. Maj. Maj. Maj. Maj. Perf. Perf. Maj. Maj. Maj. Maj. Maj. Maj. Perf.
12|2 2 LLLLLLsLLLLLLsL Perf. Maj. Maj. Maj. Maj. Maj. Maj. Perf. Perf. Maj. Maj. Maj. Maj. Maj. Min. Perf.
11|3 10 LLLLLsLLLLLLLsL Perf. Maj. Maj. Maj. Maj. Maj. Min. Perf. Perf. Maj. Maj. Maj. Maj. Maj. Min. Perf.
10|4 3 LLLLLsLLLLLLsLL Perf. Maj. Maj. Maj. Maj. Maj. Min. Perf. Perf. Maj. Maj. Maj. Maj. Min. Min. Perf.
9|5 11 LLLLsLLLLLLLsLL Perf. Maj. Maj. Maj. Maj. Min. Min. Perf. Perf. Maj. Maj. Maj. Maj. Min. Min. Perf.
8|6 4 LLLLsLLLLLLsLLL Perf. Maj. Maj. Maj. Maj. Min. Min. Perf. Perf. Maj. Maj. Maj. Min. Min. Min. Perf.
7|7 12 LLLsLLLLLLLsLLL Perf. Maj. Maj. Maj. Min. Min. Min. Perf. Perf. Maj. Maj. Maj. Min. Min. Min. Perf.
6|8 5 LLLsLLLLLLsLLLL Perf. Maj. Maj. Maj. Min. Min. Min. Perf. Perf. Maj. Maj. Min. Min. Min. Min. Perf.
5|9 13 LLsLLLLLLLsLLLL Perf. Maj. Maj. Min. Min. Min. Min. Perf. Perf. Maj. Maj. Min. Min. Min. Min. Perf.
4|10 6 LLsLLLLLLsLLLLL Perf. Maj. Maj. Min. Min. Min. Min. Perf. Perf. Maj. Min. Min. Min. Min. Min. Perf.
3|11 14 LsLLLLLLLsLLLLL Perf. Maj. Min. Min. Min. Min. Min. Perf. Perf. Maj. Min. Min. Min. Min. Min. Perf.
2|12 7 LsLLLLLLsLLLLLL Perf. Maj. Min. Min. Min. Min. Min. Perf. Perf. Min. Min. Min. Min. Min. Min. Perf.
1|13 15 sLLLLLLLsLLLLLL Perf. Min. Min. Min. Min. Min. Min. Perf. Perf. Min. Min. Min. Min. Min. Min. Perf.
0|14 8 sLLLLLLsLLLLLLL Perf. Min. Min. Min. Min. Min. Min. Perf. Dim. Min. Min. Min. Min. Min. Min. Perf.

Tuning ranges

Simple tunings

Simple Tunings of 13L 2s⟨3/1⟩
Scale degree Abbrev. Basic (2:1)
28edt
Hard (3:1)
41edt
Soft (3:2)
43edt
Steps ¢ Steps ¢ Steps ¢
Perfect 0-mosdegree P0md 0\28 0.0 0\41 0.0 0\43 0.0
Minor 1-mosdegree m1md 1\28 67.9 1\41 46.4 2\43 88.5
Major 1-mosdegree M1md 2\28 135.9 3\41 139.2 3\43 132.7
Minor 2-mosdegree m2md 3\28 203.8 4\41 185.6 5\43 221.2
Major 2-mosdegree M2md 4\28 271.7 6\41 278.3 6\43 265.4
Minor 3-mosdegree m3md 5\28 339.6 7\41 324.7 8\43 353.9
Major 3-mosdegree M3md 6\28 407.6 9\41 417.5 9\43 398.1
Minor 4-mosdegree m4md 7\28 475.5 10\41 463.9 11\43 486.5
Major 4-mosdegree M4md 8\28 543.4 12\41 556.7 12\43 530.8
Minor 5-mosdegree m5md 9\28 611.3 13\41 603.1 14\43 619.2
Major 5-mosdegree M5md 10\28 679.3 15\41 695.8 15\43 663.5
Minor 6-mosdegree m6md 11\28 747.2 16\41 742.2 17\43 751.9
Major 6-mosdegree M6md 12\28 815.1 18\41 835.0 18\43 796.2
Perfect 7-mosdegree P7md 13\28 883.1 19\41 881.4 20\43 884.6
Augmented 7-mosdegree A7md 14\28 951.0 21\41 974.2 21\43 928.9
Diminished 8-mosdegree d8md 14\28 951.0 20\41 927.8 22\43 973.1
Perfect 8-mosdegree P8md 15\28 1018.9 22\41 1020.6 23\43 1017.3
Minor 9-mosdegree m9md 16\28 1086.8 23\41 1067.0 25\43 1105.8
Major 9-mosdegree M9md 17\28 1154.8 25\41 1159.7 26\43 1150.0
Minor 10-mosdegree m10md 18\28 1222.7 26\41 1206.1 28\43 1238.5
Major 10-mosdegree M10md 19\28 1290.6 28\41 1298.9 29\43 1282.7
Minor 11-mosdegree m11md 20\28 1358.5 29\41 1345.3 31\43 1371.2
Major 11-mosdegree M11md 21\28 1426.5 31\41 1438.1 32\43 1415.4
Minor 12-mosdegree m12md 22\28 1494.4 32\41 1484.5 34\43 1503.9
Major 12-mosdegree M12md 23\28 1562.3 34\41 1577.2 35\43 1548.1
Minor 13-mosdegree m13md 24\28 1630.2 35\41 1623.6 37\43 1636.6
Major 13-mosdegree M13md 25\28 1698.2 37\41 1716.4 38\43 1680.8
Minor 14-mosdegree m14md 26\28 1766.1 38\41 1762.8 40\43 1769.3
Major 14-mosdegree M14md 27\28 1834.0 40\41 1855.6 41\43 1813.5
Perfect 15-mosdegree P15md 28\28 1902.0 41\41 1902.0 43\43 1902.0

Soft-of-basic tunings

Tunings of 13L 2s⟨3/1⟩
Scale degree Abbrev. 5:4
73edt
Supersoft (4:3)
58edt
Soft (3:2)
43edt
Semisoft (5:3)
71edt
Steps ¢ Steps ¢ Steps ¢ Steps ¢
Perfect 0-mosdegree P0md 0\73 0.0 0\58 0.0 0\43 0.0 0\71 0.0
Minor 1-mosdegree m1md 4\73 104.2 3\58 98.4 2\43 88.5 3\71 80.4
Major 1-mosdegree M1md 5\73 130.3 4\58 131.2 3\43 132.7 5\71 133.9
Minor 2-mosdegree m2md 9\73 234.5 7\58 229.5 5\43 221.2 8\71 214.3
Major 2-mosdegree M2md 10\73 260.5 8\58 262.3 6\43 265.4 10\71 267.9
Minor 3-mosdegree m3md 14\73 364.8 11\58 360.7 8\43 353.9 13\71 348.2
Major 3-mosdegree M3md 15\73 390.8 12\58 393.5 9\43 398.1 15\71 401.8
Minor 4-mosdegree m4md 19\73 495.0 15\58 491.9 11\43 486.5 18\71 482.2
Major 4-mosdegree M4md 20\73 521.1 16\58 524.7 12\43 530.8 20\71 535.8
Minor 5-mosdegree m5md 24\73 625.3 19\58 623.1 14\43 619.2 23\71 616.1
Major 5-mosdegree M5md 25\73 651.4 20\58 655.8 15\43 663.5 25\71 669.7
Minor 6-mosdegree m6md 29\73 755.6 23\58 754.2 17\43 751.9 28\71 750.1
Major 6-mosdegree M6md 30\73 781.6 24\58 787.0 18\43 796.2 30\71 803.6
Perfect 7-mosdegree P7md 34\73 885.8 27\58 885.4 20\43 884.6 33\71 884.0
Augmented 7-mosdegree A7md 35\73 911.9 28\58 918.2 21\43 928.9 35\71 937.6
Diminished 8-mosdegree d8md 38\73 990.1 30\58 983.8 22\43 973.1 36\71 964.4
Perfect 8-mosdegree P8md 39\73 1016.1 31\58 1016.6 23\43 1017.3 38\71 1017.9
Minor 9-mosdegree m9md 43\73 1120.3 34\58 1114.9 25\43 1105.8 41\71 1098.3
Major 9-mosdegree M9md 44\73 1146.4 35\58 1147.7 26\43 1150.0 43\71 1151.9
Minor 10-mosdegree m10md 48\73 1250.6 38\58 1246.1 28\43 1238.5 46\71 1232.3
Major 10-mosdegree M10md 49\73 1276.7 39\58 1278.9 29\43 1282.7 48\71 1285.8
Minor 11-mosdegree m11md 53\73 1380.9 42\58 1377.3 31\43 1371.2 51\71 1366.2
Major 11-mosdegree M11md 54\73 1406.9 43\58 1410.1 32\43 1415.4 53\71 1419.8
Minor 12-mosdegree m12md 58\73 1511.1 46\58 1508.4 34\43 1503.9 56\71 1500.1
Major 12-mosdegree M12md 59\73 1537.2 47\58 1541.2 35\43 1548.1 58\71 1553.7
Minor 13-mosdegree m13md 63\73 1641.4 50\58 1639.6 37\43 1636.6 61\71 1634.1
Major 13-mosdegree M13md 64\73 1667.5 51\58 1672.4 38\43 1680.8 63\71 1687.7
Minor 14-mosdegree m14md 68\73 1771.7 54\58 1770.8 40\43 1769.3 66\71 1768.0
Major 14-mosdegree M14md 69\73 1797.7 55\58 1803.6 41\43 1813.5 68\71 1821.6
Perfect 15-mosdegree P15md 73\73 1902.0 58\58 1902.0 43\43 1902.0 71\71 1902.0

Hard-of-basic tunings

Tunings of 13L 2s⟨3/1⟩
Scale degree Abbrev. Semihard (5:2)
69edt
Hard (3:1)
41edt
Superhard (4:1)
54edt
5:1
67edt
Steps ¢ Steps ¢ Steps ¢ Steps ¢
Perfect 0-mosdegree P0md 0\69 0.0 0\41 0.0 0\54 0.0 0\67 0.0
Minor 1-mosdegree m1md 2\69 55.1 1\41 46.4 1\54 35.2 1\67 28.4
Major 1-mosdegree M1md 5\69 137.8 3\41 139.2 4\54 140.9 5\67 141.9
Minor 2-mosdegree m2md 7\69 193.0 4\41 185.6 5\54 176.1 6\67 170.3
Major 2-mosdegree M2md 10\69 275.6 6\41 278.3 8\54 281.8 10\67 283.9
Minor 3-mosdegree m3md 12\69 330.8 7\41 324.7 9\54 317.0 11\67 312.3
Major 3-mosdegree M3md 15\69 413.5 9\41 417.5 12\54 422.7 15\67 425.8
Minor 4-mosdegree m4md 17\69 468.6 10\41 463.9 13\54 457.9 16\67 454.2
Major 4-mosdegree M4md 20\69 551.3 12\41 556.7 16\54 563.5 20\67 567.7
Minor 5-mosdegree m5md 22\69 606.4 13\41 603.1 17\54 598.8 21\67 596.1
Major 5-mosdegree M5md 25\69 689.1 15\41 695.8 20\54 704.4 25\67 709.7
Minor 6-mosdegree m6md 27\69 744.2 16\41 742.2 21\54 739.6 26\67 738.1
Major 6-mosdegree M6md 30\69 826.9 18\41 835.0 24\54 845.3 30\67 851.6
Perfect 7-mosdegree P7md 32\69 882.1 19\41 881.4 25\54 880.5 31\67 880.0
Augmented 7-mosdegree A7md 35\69 964.8 21\41 974.2 28\54 986.2 35\67 993.6
Diminished 8-mosdegree d8md 34\69 937.2 20\41 927.8 26\54 915.8 32\67 908.4
Perfect 8-mosdegree P8md 37\69 1019.9 22\41 1020.6 29\54 1021.4 36\67 1021.9
Minor 9-mosdegree m9md 39\69 1075.0 23\41 1067.0 30\54 1056.6 37\67 1050.3
Major 9-mosdegree M9md 42\69 1157.7 25\41 1159.7 33\54 1162.3 41\67 1163.9
Minor 10-mosdegree m10md 44\69 1212.8 26\41 1206.1 34\54 1197.5 42\67 1192.3
Major 10-mosdegree M10md 47\69 1295.5 28\41 1298.9 37\54 1303.2 46\67 1305.8
Minor 11-mosdegree m11md 49\69 1350.7 29\41 1345.3 38\54 1338.4 47\67 1334.2
Major 11-mosdegree M11md 52\69 1433.4 31\41 1438.1 41\54 1444.1 51\67 1447.8
Minor 12-mosdegree m12md 54\69 1488.5 32\41 1484.5 42\54 1479.3 52\67 1476.1
Major 12-mosdegree M12md 57\69 1571.2 34\41 1577.2 45\54 1585.0 56\67 1589.7
Minor 13-mosdegree m13md 59\69 1626.3 35\41 1623.6 46\54 1620.2 57\67 1618.1
Major 13-mosdegree M13md 62\69 1709.0 37\41 1716.4 49\54 1725.8 61\67 1731.6
Minor 14-mosdegree m14md 64\69 1764.1 38\41 1762.8 50\54 1761.1 62\67 1760.0
Major 14-mosdegree M14md 67\69 1846.8 40\41 1855.6 53\54 1866.7 66\67 1873.6
Perfect 15-mosdegree P15md 69\69 1902.0 41\41 1902.0 54\54 1902.0 67\67 1902.0

Scale tree

Scale tree and tuning spectrum of 13L 2s⟨3/1⟩
Generator(edt) Cents Step ratio Comments
Bright Dark L:s Hardness
8\15 1014.376 887.579 1:1 1.000 Equalized 13L 2s⟨3/1⟩
47\88 1015.817 886.138 6:5 1.200
39\73 1016.113 885.842 5:4 1.250
70\131 1016.312 885.643 9:7 1.286
31\58 1016.562 885.393 4:3 1.333 Supersoft 13L 2s⟨3/1⟩
85\159 1016.768 885.187 11:8 1.375
54\101 1016.887 885.068 7:5 1.400
77\144 1017.018 884.937 10:7 1.429
23\43 1017.325 884.630 3:2 1.500 Soft 13L 2s⟨3/1⟩
84\157 1017.606 884.349 11:7 1.571 Just-5/3 a.k.a. Trithagorean tuning (884.359 ¢)
61\114 1017.713 884.242 8:5 1.600
99\185 1017.803 884.152 13:8 1.625
38\71 1017.948 884.007 5:3 1.667 Semisoft 13L 2s⟨3/1⟩
91\170 1018.105 883.850 12:7 1.714 CWE-optimized Delta centauri (883.901 ¢)
53\99 1018.218 883.737 7:4 1.750
68\127 1018.370 883.585 9:5 1.800
15\28 1018.904 883.051 2:1 2.000 Basic 13L 2s⟨3/1⟩
Scales with tunings softer than this are proper
67\125 1019.448 882.507 9:4 2.250
52\97 1019.605 882.350 7:3 2.333
89\166 1019.723 882.232 12:5 2.400
37\69 1019.889 882.066 5:2 2.500 Semihard 13L 2s⟨3/1⟩
96\179 1020.043 881.912 13:5 2.600
59\110 1020.140 881.816 8:3 2.667
81\151 1020.254 881.701 11:4 2.750
22\41 1020.561 881.394 3:1 3.000 Hard 13L 2s⟨3/1⟩
73\136 1020.902 881.053 10:3 3.333
51\95 1021.050 880.905 7:2 3.500
80\149 1021.184 880.771 11:3 3.667
29\54 1021.420 880.535 4:1 4.000 Superhard 13L 2s⟨3/1⟩
65\121 1021.711 880.244 9:2 4.500
36\67 1021.946 880.009 5:1 5.000
43\80 1022.301 879.654 6:1 6.000
7\13 1024.130 877.825 1:0 → ∞ Collapsed 13L 2s⟨3/1⟩
CWE-optimized Arcturus (878.291 ¢)
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