Scala analysis: xen10-wilson-purvi-06b-06
Purvi modulation 6 from Figure 6b, Al-Farabi (10/9 27/25 10/9)
Generated by Scala: https://www.huygens-fokker.org/scala/
SHOW
0: 1/1 0.000000 unison, perfect prime 1: 27/25 133.237575 large limma, BP small semitone, Zarlino semitone 2: 6/5 315.641287 minor third 3: 4/3 498.044999 perfect fourth 4: 3/2 701.955001 perfect fifth 5: 8/5 813.686286 minor sixth 6: 9/5 1017.596288 just minor seventh, BP seventh 7: 2/1 1200.000000 octave
SHOW/INTERVAL
0: 10/9 182.4037 minor whole tone 1: 27/25 133.2376 large limma, BP small semitone, Zarlino semitone 2: 10/9 182.4037 minor whole tone 3: 10/9 182.4037 minor whole tone 4: 9/8 203.9100 major whole tone 5: 16/15 111.7313 minor diatonic semitone 6: 9/8 203.9100 major whole tone 7: 10/9 182.4037 minor whole tone
SHOW INTERVALS
Interval class, Number of incidences, Size: 1: 1 16/15 111.731 cents minor diatonic semitone 1: 1 27/25 133.238 cents large limma, BP small semitone, Zarlino semitone 1: 3 10/9 182.404 cents minor whole tone 1: 2 9/8 203.910 cents major whole tone 2: 4 6/5 315.641 cents minor third 2: 1 100/81 364.807 cents grave major third 2: 2 5/4 386.314 cents major third 3: 4 4/3 498.045 cents perfect fourth 3: 2 27/20 519.551 cents acute fourth 3: 1 25/18 568.717 cents classic augmented fourth 4: 1 36/25 631.283 cents classic diminished fifth 4: 2 40/27 680.449 cents grave fifth 4: 4 3/2 701.955 cents perfect fifth 5: 2 8/5 813.686 cents minor sixth 5: 1 81/50 835.193 cents acute minor sixth 5: 4 5/3 884.359 cents major sixth, BP sixth 6: 2 16/9 996.090 cents Pythagorean minor seventh 6: 3 9/5 1017.596 cents just minor seventh, BP seventh 6: 1 50/27 1066.762 cents grave major seventh 6: 1 15/8 1088.269 cents classic major seventh Highest number of different intervals for one interval class: 4 Average number of different intervals per interval class: 3.33333 = 10/3
SHOW/LINE/CENTS INTERVALS
1 2 3 4 5 6 7 0.0 : 133.2 315.6 498.0 702.0 813.7 1017.6 1200.0 133.2 : 182.4 364.8 568.7 680.4 884.4 1066.8 1200.0 315.6 : 182.4 386.3 498.0 702.0 884.4 1017.6 1200.0 498.0 : 203.9 315.6 519.6 702.0 835.2 1017.6 1200.0 702.0 : 111.7 315.6 498.0 631.3 813.7 996.1 1200.0 813.7 : 203.9 386.3 519.6 702.0 884.4 1088.3 1200.0 1017.6: 182.4 315.6 498.0 680.4 884.4 996.1 1200.0 1200.0
SHOW/SPAN INTERVALS
Interval class, Interval span, Span size, Gap to prev. class: 1: 111.7313 .. 203.9100 cents 135/128, 92.1787 cents 16/15, 111.7313 cents 2: 315.6413 .. 386.3137 cents 25/24, 70.6724 cents 16/15, 111.7313 cents 3: 498.0450 .. 568.7174 cents 25/24, 70.6724 cents 16/15, 111.7313 cents 4: 631.2826 .. 701.9550 cents 25/24, 70.6724 cents 648/625, 62.5651 cents 5: 813.6863 .. 884.3587 cents 25/24, 70.6724 cents 16/15, 111.7313 cents 6: 996.0900 .. 1088.2687 cents 135/128, 92.1787 cents 16/15, 111.7313 cents
SHOW DATA
Number of notes : 7 -- Interval properties -- Smallest interval : 16/15, 111.7313 cents, class 1 Average step (divided formal octave): 171.4286 cents Largest one step interval : 9/8, 203.9100 cents Average / Smallest step : 1.534293 Largest / Average step : 1.189475 Largest / Smallest step : 1.825004 Median interval of one step : 10/9, 182.4037 cents, amount: 3 Most common interval of one step : 10/9, 182.4037 cents, amount: 3 Least squares average step : 168.86060 cents, oct.: 1182.02422 cents Scale is strictly proper Step pattern alph. order: ABBCDCB Step pattern size order : BCCDADC Scale is a Constant Structure, by a margin of 62.56515 cents Scale diversity : 1.386222 Rothenberg stability : 1.000000 = 1 Lumma stability : 0.610794 Rothenberg efficiency : 0.478912 redundancy: 0.521088 Efficiency x scale size : 3.352381 Number of different interval sizes : 20 = 3.33333 / class Number of one step interval sizes : 4 Highest interval variety : 4 Mean interval variety : 3.33333 = 10/3 Median interval variety : 3 Lowest interval variety : 3 Smallest interval difference : 81/80, 21.5063 cents Most common triad is 0.0 315.641 498.045 cents, amount: 3 Number of recognisable fifths : 4, average 701.9550 cents Best fifths form a closed circle Best major thirds form a closed circle Best minor thirds form a closed circle Scale contains a complete diamond : 1 3 Length of longest harmonic part : 2 at degree 5 Length of longest subharmonic part : 2 at degree 2 Formal octave complements present : 3 = 42.8571% Scale is n-1 differentially coherent in interval class 1 Scale is n-1 differentially coherent in interval class 2 Scale is n-1 differentially coherent in interval classes 3 and 4 combined Scale is n-1 differentially coherent in interval classes 4 and 5 combined Limited inverse transpositions with margin 70.6724 cents: 5 -- Rational properties -- Prime limit : 5 Odd number limit : 81 (O: 81 U: 81) Highest odd numerator or denominator: 27 Scale harmonicity : 0.036408 Average absolute harmonicity : 0.260862 Specific harmonicity : 0.212483 Fundamental : 1/150, -7.2288 octaves, 1.7442 Hz. Guide tone : 216, 7.7549 octaves, 56511.122 Hz. Exponens Consonantiae : 3.240000E+04, 14.98371 octaves Euler's gradus suavitatis : 21 Sum of Mann's harmonic distance : 52.5, average 7.50000 Mersenne's string divisions : 60060 Sum of van Prooijen's expressibility: 4.73779, average 0.67683 Sum of Tenney's harmonic distance : 9.72006, average 1.38858 Vogel's harmonic complexity : 13.85714 Wille's k value : 112 Wilson's harmonic complexity : 22 Rectangular lattice diameter : 6 Triangular lattice diameter : 4 Lattice compactness : 71.99486, average 2.57125 Lattice compactness (without 2's) : 51.26577, average 1.83092 Number of different primes : 3 Prime exponents' range, average, count, tones@limit: 2: -1 .. 3 0.85714 8 1 3: -1 .. 3 0.85714 8 2 5: -2 .. 0 -0.71429 5 4 Average exponent except 2's : 1 / 7 = 0.14286 Average absolute exponent except 2's: 13 / 7 = 1.85714 Scale is JI-epimorphic with val: <7 11 16| = patent
FIT/MODE
7: 1 1 1 1 1 1 1 SP B ME I SD: 26.0102 c. M:-43.4566 c. Lebeng 12: 1 2 2 2 1 2 2 P M ME S SD: 16.2743 c. M: 33.2376 c. G.Dorian, M.Phrygian, G.M.Hypoaeolian, Bhairavi That, Mela Hanumatodi, Raga Asavari (Asaveri), Bilashkhani Todi, Ghanta, Makam Kurd, Gregorian nr.3, In, Zokuso: Japan, Ousak: Greece, Major inverse 15: 2 2 2 3 1 3 2 SP D3 S SD: 17.2200 c. M:-26.7624 c. 19: 2 3 3 3 2 3 3 SP M ME S SD: 6.0520 c. M:-7.3663 c. Nineteen-tone Phrygian 34: 4 5 5 6 3 6 5 SP SD: 4.4206 c. M:-7.9389 c. 46: 5 7 7 8 4 8 7 SP SD: 2.6993 c. M: 4.9906 c. 53: 6 8 8 9 5 9 8 SP SD: 1.3215 c. M:-2.6115 c. 99: 11 15 15 17 9 17 15 SP SD: 0.8746 c. M: 1.5651 c. 118: 13 18 18 20 11 20 18 SP SD: 0.5056 c. M: 1.0342 c. 152: 17 23 23 26 14 26 23 SP SD: 0.6374 c. M:-0.9730 c. 171: 19 26 26 29 16 29 26 SP SD: 0.1836 c. M:-0.3488 c. 388: 43 59 59 66 36 66 59 SP SD: 0.1697 c. M: 0.2842 c. 441: 49 67 67 75 41 75 67 SP SD: 0.0744 c. M:-0.0958 c. 559: 62 85 85 95 52 95 85 SP SD: 0.0748 c. M: 0.1428 c. 612: 68 93 93 104 57 104 93 SP SD: 0.0469 c. M:-0.0958 c. 730: 81 111 111 124 68 124 111 SP SD: 0.0462 c. M: 0.0869 c. 901: 100 137 137 153 84 153 137 SP SD: 0.0555 c. M:-0.0762 c. 1000: 111 152 152 170 93 170 152 SP SD: 0.0457 c. M: 0.0863 c. 1171: 130 178 178 199 109 199 178 SP SD: 0.0132 c. M: 0.0228 c. 1783: 198 271 271 303 166 303 271 SP SD: 0.0108 c. M:-0.0210 c.
FIT/HARMONIC
1 x x x x x x 2 S SD: 0.0000 cents 2 x x x 3 x x 4 S SD: 0.0000 cents 3 x x 4 x 5 x 6 S SD: 23.5575 cents 4 x 5 x 6 x 7:8 S SD: 21.4668 cents 5 x 6:7 x 8:9:10 S SD: 16.8934 cents 6 x 7:8:9:10:11:12 S SD: 15.2591 cents 7 x 8:9 x 11:13:14 SD: 24.4943 cents 8:9:10:11:12:13:14:16 S SD: 18.0284 cents 9:10:11:12 x 14:16:18 S SD: 13.1946 cents 10:11:12:13:15:16:18:20 SD: 7.7332 cents 14:15:17:19:21:22:25:28 SD: 7.4401 cents 15:16:18:20:23:24:27:30 SD: 6.2440 cents 20:22:24:27:30:32:36:40 S SD: 5.4803 cents 24:26:29:32:36:38:43:48 SD: 3.3962 cents 30:32:36:40:45:48:54:60 S SD: 3.0723 cents 36:39:43:48:54:58:65:72 SD: 2.3256 cents 40:43:48:53:60:64:72:80 SD: 1.9291 cents 50:54:60:67:75:80:90:100 SD: 1.2335 cents 60:65:72:80:90:96:108:120 SD: 0.7622 cents 90:97:108:120:135:144:162:180 SD: 0.5094 cents 150:162:180:200:225:240:270:300 SD: 0.0000 cents