User:Moremajorthanmajor/4L 1s (5/3-equivalent)

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4L 1s<5/3> (sometimes called diatonic), is a major sixth-repeating MOS scale. The notation "<5/3>" means the period of the MOS is 5/3, disambiguating it from octave-repeating 4L 1s. The name of the period interval is called the sextave (by analogy to the tritave).

The generator range is 171.4 to 240 cents, placing it on the diatonic major second, usually representing a major second of some type (like 8/7). The bright (chroma-positive) generator is, however, its major sixth complement (685.7 to 720 cents).

Because this diatonic is a major sixth-repeating scale, each tone has a 5/3 major sixth above it. The scale has one augmented chord, two major chords, two minor chords. This diatonic also has two dominant 7th chords, making it a warped Neapolitan minor scale.

Basic diatonic is in 9ed5/3, which is a very good major sixth-based equal tuning similar to 12edo.

Notation

There are 2 main ways to notate the diatonic scale. One method uses a simple sextave (major sixth) repeating notation consisting of 5 naturals (Do, Re, Mi, Fa, Sol or Sol, La, Si, Do, Re). Given that 1-5/4-3/2 is major sixth-equivalent to a tone cluster of 1-10/9-5/4, it may be more convenient to notate these diatonic scales as repeating at the double sextave (augmented eleventh~twelfth), however it does make navigating the genchain harder. This way, 3/2 is its own pitch class, distinct from 10\9. Notating this way produces a twelfth which is the Scala Francisci[8L 2s]. Since there are exactly 10 naturals in double sextave notation, Greek numerals 1-10 may be used.

Normalized
Notation Supersoft Soft Semisoft Basic Semihard Hard Superhard
Diatonic Scala Francisci 19eds 14eds 23eds 9eds 22eds 13eds 17eds
Do#, Sol# Α# 1\19

46.154

1\14

63.158

2\23

77.419

1\9

100

3\22

124.138

2\13

141.1765

3\17

163.63

Reb, Lab Βb 3\19

138.4615

2\14

126.316

3\23

116.129

2\22

82.759

1\13

70.588

1\17

54.54

Re, La Β 4\19

184.615

3\14

189.474

5\23

193.548

2\9

200

5\22

206.897

3\13

211.765

4\17

218.18

Re#, La# Β# 5\19

230.769

4\14

252.632

7\23

270.968

3\9

300

8\22

331.0345

5\13

352.941

7\17

381.81

Mib, Sib Γb 7\19

323.077

5\14

315.7895

8\23

309.677

7\22

289.655

4\13

282.353

5\17

272.72

Mi, Si Γ 8\19

369.2301

6\14

378.947

10\23

387.097

4\9

400

10\22

413.793

6\13

423.529

8\17

436.36

Mi#, Si# Γ# 9\19

415.385

7\14

442.105

12\23

464.516

5\9

500

13\22

537.931

8\13

564.706

11\17

600

Fab, Dob Δb 10\19

461.5385

11\23

425.8065

4\9

400

9\22

372.414

5\13

352.941

6\17

327.27

Fa, Do Δ 11\19

507.692

8\14

505.263

13\23

503.226

5\9

500

12\22

496.552

7\13

494.118

9\17

490.90

Fa#, Do# Δ# 12\19

553.846

9\14

568.421

15\23

580.645

6\9

600

15\22

620.690

9\13

635.294

12\17

654.54

Solb, Reb Εb 14\19

646.154

10\14

631.579

16\23

619.355

14\22

579.310

8\13

564.706

10\17

545.45

Sol, Re Ε 15\19

692.308

11\14

694.737

18\23

696.774

7\9

700

17\22

703.448

10\13

705.882

13\17

709.09

Sol#, Re# Ε# 16\19

738.4615

12\14

757.895

20\23

774.194

8\9

800

20\22

827.586

12\13

847.059

16\14

872.72

Dob, Solb Ϛb/Ϝb 18\19

830.769

13\14

821.053

21\23

812.903

19\22

786.207

11\13

776.647

14\17

763.63

Do, Sol Ϛ/Ϝ 19\19

876.923

14\14

884.2105

23\23

890.323

9\9

900

22\22

910.345

13\13

917.647

17\17

927.27

Do#, Sol# Ϛ#/Ϝ# 20\19

923.077

15\14

947.368

24\23

929.032

10\9

1000

25\22

1034.483

15\13

1052.8235

20\17

1090.90

Reb, Lab Ζb 22\19

1015.385

16\14

1010.526

26\23

1006.452

24\22

993.103

14\13

988.235

18\17

981.81

Re, La Ζ 23\19

1061.5385

17\14

1071.684

28\23

1083.871

11\9

1100

27\22

1117.241

16\13

1129.412

21\17

1145.45

Re#, La# Ζ# 24\19

1107.692

18\14

1136.842

30\23

1161.290

12\9

1200

30\22

1241.379

18\13

1270.588

24\14

1309.09

Mib, Sib Ηb 26\19

1200

19\14

1200

31\23

1200

29\22

1200

17\13

1200

22\17

1200

Mi, Si Η 27\19

1246.154

20\14

1263.158

33\23

1277.419

13\9

1300

32\22

1324.138

19\13

1341.1765

25\17

1363.63

Mi#, Si# Η# 28\19

1292.308

21\14

1326.316

35\23

1354.839

14\9

1400

35\22

1448.276

21\13

1482.353

28\17

1527.27

Fab, Dob Θb 29\19

1338.4615

34\23

1316.129

13\9

1300

31\22

1282.759

18\13

1270.588

23\17

1254.54

Fa, Do Θ 30\19

1384.615

22\14

1389.474

36\23

1393.548

14\9

1400

34\22

1406.897

20\13

1411.765

26\17

1418.18

Fa#, Do# Θ# 31\19

1430.769

23\14

1452.632

38\23

1470.968

15\9

1500

37\22

1531.0345

22\13

1552.941

29\17

1581.81

Solb, Reb Ιb 33\19

1523.077

24\14

1515.7895

39\23

1509.677

36\22

1489.655

21\13

1482.353

27\17

1472.72

Sol, Re Ι 34\19

1569.231

25\14

1578.947

41\23

1587.097

16\9

1600

39\22

1613.793

23\13

1623.529

30\17

1636.36

Sol#, Re# Ι# 35\19

1615.385

26\14

1642.105

43\23

1664.516

17\9

1700

42\22

1737.931

25\13

1764.706

33\17

1800

Dob, Solb Αb 37\19

1707.692

27\14

1705.263

44\23

1703.226

41\22

1696.552

20\13

1694.118

31\17

1490.90

Do, Sol Α 38\19

1753.846

28\14

1768.421

46\23

1780.645

18\9

1800

44\22

1820.690

26\13

1835.2941

34\17

1854.54

ed9\12 (→ed3\4)
Notation Supersoft Soft Semisoft Basic Semihard Hard Superhard
Diatonic Scala Francisci 19eds 14eds 23eds 9eds 22eds 13eds 17eds
Do#, Sol# Α# 1\19

47.368

1\14

64.286

2\23

78.261

1\9

100

3\22

122.72

2\13

138.4615

3\17

158.8235

Reb, Lab Βb 3\19

142.105

2\14

128.571

3\23

117.391

2\22

81.81

1\13

69.231

1\17

52.941

Re, La Β 4\19

189.474

3\14

192.857

5\23

195.652

2\9

200

5\22

204.54

3\13

207.692

4\17

211.765

Re#, La# Β# 5\19

236.842

4\14

257.143

7\23

273.913

3\9

300

8\22

327.27

5\13

346.154

7\17

370.588

Mib, Sib Γb 7\19

331.579

5\14

321.429

8\23

313.0345

7\22

286.36

4\13

276.923

5\17

264.706

Mi, Si Γ 8\19

378.947

6\14

385.714

10\23

391.304

4\9

400

10\22

409.09

6\13

415.385

8\17

423.529

Mi#, Si# Γ# 9\19

426.316

7\14

450

12\23

469.565

5\9

500

13\22

531.81

8\13

553.846

11\17

582.353

Fab, Dob Δb 10\19

473.684

11\23

430.769

4\9

400

9\22

368.18

5\13

346.154

6\17

317.647

Fa, Do Δ 11\19

521.053

8\14

514.286

13\23

508.696

5\9

500

12\22

490.90

7\13

484.615

9\17

476.471

Fa#, Do# Δ# 12\19

568.421

9\14

578.571

15\23

578.9655

6\9

600

15\22

613.63

9\13

623.077

12\17

635.293

Solb, Reb Εb 14\19

663.158

10\14

642.857

16\23

626.087

14\22

572.72

8\13

553.846

10\17

529.412

Sol, Re Ε 15\19

710.526

11\14

707.143

18\23

704.348

7\8

700

17\22

695.45

10\13

692.308

13\17

688.235

Sol#, Re# Ε# 16\19

757.895

12\14

771.429

20\23

782.609

8\8

800

20\22

818.18

12\13

830.769

16\17

847.059

Dob, Solb Ϛb/Ϝb 18\19

852.632

13\14

835.714

21\23

821.739

19\22

777.27

11\13

761.5385

14\17

741.1765

Do, Sol Ϛ/Ϝ 900
Do#, Sol# Ϛ#/Ϝ# 20\19

947.368

15\14

964.286

25\23

978.261

10\9

1000

25\22

1022.72

15\13

1038.4615

20\17

1058.8235

Reb, Lab Ζb 22\19

1042.105

16\14

1028.571

26\23

1017.391

24\22

981.81

14\13

969.231

18\17

952.941

Re, La Ζ 23\19

1089.473

17\14

1092.857

28\23

1095.652

11\9

1100

27\22

1104.54

16\13

1107.692

21\17

1111.765

Re#, La# Ζ# 24\19

1136.842

18\14

1157.143

30\23

1173.913

12\9

1200

30\22

1227.27

18\13

1246.154

24\14

1270.588

Mib, Sib Ηb 26\19

1231.579

19\14

1221.429

31\23

1213.0345

29\22

1186.36

17\13

1176.923

22\17

1164.706

Mi, Si Η 27\19

1278.947

20\14

1285.714

33\23

1291.304

13\9

1300

32\22

1309.09

19\13

1315.385

25\17

1323.529

Mi#, Si# Η# 28\19

1326.316

21\14

1350

35\23

1369.565

14\9

1400

35\22

1431.81

21\13

1453.846

28\17

1482.353

Fab, Dob Θb 29\19

1373.684

34\23

1330.769

13\9

1300

31\22

1368.18

18\13

1246.154

23\17

1317.647

Fa, Do Θ 30\19

1421.053

22\14

1414.286

36\23

1408.696

14\9

1400

34\22

1390.90

20\13

1384.615

26\17

1376.471

Fa#, Do# Θ# 31\19

1468.421

23\14

1478.714

38\23

1487.9655

15\9

1500

37\22

1513.63

22\13

1523.077

29\17

1535.294

Solb, Reb Ιb 33\19

1563.158

24\14

1542.857

39\23

1526.087

36\22

1472.72

21\13

1453.846

27\17

1429.412

Sol, Re Ι 34\19

1610.526

25\14

1607.143

41\23

1604.348

16\9

1600

39\22

1595.45

23\13

1592.308

30\17

1588.235

Sol#, Re# Ι# 35\19

1657.895

26\14

1671.429

43\23

1682.609

17\9

1700

42\22

1718.18

25\13

1730.769

33\17

1747.059

Dob, Solb Αb 37\19

1752.632

27\14

1735.714

44\23

1721.739

41\22

1677.27

20\13

1661.5385

31\17

1641.1765

Do, Sol Α 1800

Intervals

Generators Sextave notation Interval category name Generators Notation of sixth inverse Interval category name
The 5-note MOS has the following intervals (from some root):
0 Do, Sol sextave (major sixth) 0 Do, Sol perfect unison
1 Sol, Re perfect fifth -1 Re, La major second
2 Fa, Do perfect fourth -2 Mi, Si major third
3 Mib, Sib minor third -3 Fa#, Do# augmented fourth
4 Reb, Lab minor second -4 Sol#, Re# augmented fifth
The chromatic 9-note MOS also has the following intervals (from some root):
5 Dob, Solb diminished sextave -5 Do#, Sol# augmented unison (chroma)
6 Solb, Reb diminished fifth -6 Re#, La# augmented second
7 Fab, Dob diminished fourth -7 Mi#, Si# augmented third
8 Mibb, Sibb diminished third -8 Fax, Dox doubly augmented fourth

Genchain

The generator chain for this scale is as follows:

Mibb

Sibb

Fab

Dob

Solb

Reb

Dob

Solb

Reb

Lab

Mib

Sib

Fa

Do

Sol

Re

Do

Sol

Re

La

Mi

Si

Fa#

Do#

Sol#

Re#

Do#

Sol#

Re#

La#

Mi#

Si#

Fax

Dox

d3 d4 d5 d6 m2 m3 P4 P5 P1 M2 M3 A4 A5 A1 A2 A3 AA4

Modes

The mode names are based on the major satellites of Uranus, in order of size:

Mode Scale UDP Interval type
name pattern notation 2nd 3rd 4th 5th
Lydian Augmented LLLLs 4|0 M M A A
Lydian LLLsL 3|1 M M A P
Major LLsLL 2|2 M M P P
Dorian LsLLL 1|3 M m P P
Neapolitan sLLLL 0|4 m m P P

Temperaments

The most basic rank-2 temperament interpretation of this diatonic is Dorianic, which has pental 4:5:6 or septimal 14:18:21 chords spelled root-(2g)-(p-1g) (p = the major sixth, g = the whole tone). The name "Dorianic" comes from the Dorian major mode having the minor sixth as its characteristic interval.

Dorianic-Meantone

Subgroup: 5/3.4/3.3/2

Comma list: 81/80

POL2 generator: ~9/8 = 193.8419

Mapping: [1 1 1], 0 -2 -1]]

Optimal ET sequence: 5ed5/3, 9ed5/3, 14ed5/3

Dorianic-Superpyth

Subgroup: 12/7.4/3.3/2

Comma list: 64/63

POL2 generator: ~9/8 = 216.5781

Mapping: [1 1 1], 0 -2 -1]]

Optimal ET sequence: 4ed14/9, 13ed14/9, 17ed14/9

Scale tree

The spectrum looks like this:

Template: Scale tree is deprecated. Please use Template: MOS tuning spectrum instead. Details:
Use of a single Comments parameter has become unmaintainable. Existing scale trees should be migrated to the new template, where comments are entered using a step ratio p/q as a parameter:
{{MOS tuning spectrum
| 3/2 = Example comment
| 4/3 = Another example comment
}}


The parameters tuning and depth have been replaced with Scale Signature and Depth, respectively.


Scale tree and tuning spectrum of 4L 1s⟨5/3⟩
Generator(ed5/3) Cents Step ratio Comments(always proper)
Bright Dark L:s Hardness
1\5 176.872 707.487 1:1 1.000 Equalized 4L 1s⟨5/3⟩
6\29 182.971 701.388 6:5 1.200
5\24 184.241 700.117 5:4 1.250
9\43 185.098 699.260 9:7 1.286
4\19 186.181 698.178 4:3 1.333 Supersoft 4L 1s⟨5/3⟩
11\52 187.076 697.283 11:8 1.375
7\33 187.591 696.767 7:5 1.400
10\47 188.161 696.197 10:7 1.429
3\14 189.505 694.853 3:2 1.500 Soft 4L 1s⟨5/3⟩
11\51 190.744 693.615 11:7 1.571
8\37 191.213 693.146 8:5 1.600
13\60 191.611 692.748 13:8 1.625
5\23 192.252 692.107 5:3 1.667 Semisoft 4L 1s⟨5/3⟩
12\55 192.951 691.408 12:7 1.714
7\32 193.453 690.905 7:4 1.750
9\41 194.128 690.231 9:5 1.800
2\9 196.524 687.835 2:1 2.000 Basic 4L 1s⟨5/3⟩
9\40 198.981 685.378 9:4 2.250
7\31 199.694 684.665 7:3 2.333
12\53 200.232 684.127 12:5 2.400
5\22 200.991 683.368 5:2 2.500 Semihard 4L 1s⟨5/3⟩
13\57 201.696 682.663 13:5 2.600
8\35 202.139 682.220 8:3 2.667
11\48 202.666 681.693 11:4 2.750
3\13 204.083 680.276 3:1 3.000 Hard 4L 1s⟨5/3⟩
10\43 205.665 678.694 10:3 3.333
7\30 206.350 678.008 7:2 3.500
11\47 206.978 677.381 11:3 3.667
4\17 208.084 676.274 4:1 4.000 Superhard 4L 1s⟨5/3⟩
9\38 209.453 674.905 9:2 4.500
5\21 210.562 673.797 5:1 5.000
6\25 212.246 672.113 6:1 6.000
1\4 221.090 663.269 1:0 → ∞ Collapsed 4L 1s⟨5/3⟩