Scala analysis: xen15-chalmers-triadic-diamond-8-7-tetrachord
Upper tetrachord 64/63 * 147/128 * 8/7 of triadic diamond for M=8/7, D=3/2
Generated by Scala: https://www.huygens-fokker.org/scala/
SHOW
0: 1/1 0.000000 unison, perfect prime 1: 64/63 27.264092 septimal comma, Archytas' comma 2: 7/6 266.870906 septimal minor third 3: 4/3 498.044999 perfect fourth
SHOW/INTERVAL
0: 8/7 231.1741 septimal whole tone 1: 64/63 27.2641 septimal comma, Archytas' comma 2: 147/128 239.6068 3: 8/7 231.1741 septimal whole tone
SHOW INTERVALS
Interval class, Number of incidences, Size: 1: 1 64/63 27.264 cents septimal comma, Archytas' comma 1: 1 8/7 231.174 cents septimal whole tone 1: 1 147/128 239.607 cents 2: 1 512/441 258.438 cents 2: 1 7/6 266.871 cents septimal minor third 2: 1 21/16 470.781 cents narrow fourth Highest number of different intervals for one interval class: 3 Average number of different intervals per interval class: 3.00000 = 3
SHOW/LINE/CENTS INTERVALS
1 2 3 0.0 : 27.3 266.9 498.0 27.3 : 239.6 470.8 498.0 266.9: 231.2 258.4 498.0 498.0
SHOW/SPAN INTERVALS
Interval class, Interval span, Span size, Gap to prev. class: 1: 27.2641 .. 239.6068 cents 9261/8192, 212.3427 cents 64/63, 27.2641 cents 2: 258.4382 .. 470.7809 cents 9261/8192, 212.3427 cents 65536/64827, 18.8314 cents
SHOW DATA
Number of notes : 3 -- Interval properties -- Smallest interval : 64/63, 27.2641 cents, class 1 Average step (divided formal octave): 166.0150 cents Largest one step interval : 147/128, 239.6068 cents Average / Smallest step : 6.089145 Largest / Average step : 1.443284 Largest / Smallest step : 8.788366 Median interval of one step : 8/7, 231.1741 cents, amount: 1 Least squares average step : 146.79578 cents, oct.: 440.38734 cents Scale is strictly proper Scale has trivalence property Scale is a mode of a 2247-tone equal temperament with octave 4/3 degrees: 123 1204 2247 Least number of segments generator : 1124 of 249.133 cents and inv. number of contiguous generator circle segments: 1 Shortest superset generator : 2039 of 451.942 cents and inv. generated superset size: 50 = 47 more = 1666.667% Number of contiguous 1-step segments: 0 Step pattern alph. order: ABC Step pattern size order : SLM Scale is sum-free (all different intervals) Scale is a Constant Structure, by a margin of 18.83137 cents Scale diversity : 0.433097 Rothenberg stability : 1.000000 = 1 Lumma stability : 0.147295 Rothenberg efficiency : 0.666667 redundancy: 0.333333 Efficiency x scale size : 2.000000 Number of different interval sizes : 6 = 3.00000 / class Number of one step interval sizes : 3 Highest interval variety : 3 Mean interval variety : 3.00000 = 3 Median interval variety : 3 Lowest interval variety : 3 Smallest interval difference : 1029/1024, 8.4327 cents Number of recognisable fifths : 0 Number of recognisable fourths : 0 Length of longest harmonic part : 1 at degree 0 Length of longest subharmonic part : 1 at degree 0 Formal octave complements present : 1 = 33.3333% 2/1 octave complements present : 0 = 0.0000% Scale is n-1 differentially coherent in interval class 1 Limited inverse transpositions with margin 212.3427 cents: 1 -- Rational properties -- Prime limit : 7 Odd number limit : 441 (O: 147 U: 441) Highest odd numerator or denominator: 63 Scale harmonicity : 0.030391 Average absolute harmonicity : 0.110737 Specific harmonicity : 0.158865 Fundamental : 1/126, -6.9773 octaves, 2.0764 Hz. Guide tone : 448, 8.8074 octaves, 117208.253 Hz. Exponens Consonantiae : 5.644800E+04, 15.78463 octaves Euler's gradus suavitatis : 24 Sum of Mann's harmonic distance : 73.5, average 24.50000 Mersenne's string divisions : 11557 Sum of van Prooijen's expressibility: 3.12156, average 1.04052 Sum of Tenney's harmonic distance : 6.30795, average 2.10265 Vogel's harmonic complexity : 12.33333 Wille's k value : 73 Wilson's harmonic complexity : 20 Rectangular lattice diameter : 4 Triangular lattice diameter : 3 Lattice compactness : 25.12463, average 4.18744 Lattice compactness (without 2's) : 9.30056, average 1.55009 Number of different primes : 3 Prime exponents' range, average, count, tones@limit: 2: -1 .. 6 2.33333 9 3: -2 ..-1 -1.33333 4 1 7: -1 .. 1 0.00000 2 2 Average exponent except 2's :-4 / 3 =-1.33333 Average absolute exponent except 2's: 6 / 3 = 2.00000 Scale is weakly epimorphic with val: <7 10 19| Scale is weakly epimorphic with val: <7 10 20| Scale is weakly epimorphic with val: <8 11 22|
FIT/MODE
3: 0 2 1 N G T3 SD: 40.7801 c. M:-65.1591 c. 4: 0 2 2 P M DE S SD: 18.8140 c. M: 27.2641 c. 6: 0 3 3 P M DE S SD: 18.8140 c. M: 27.2641 c. 7: 0 4 3 N G T3 SD: 18.7754 c. M: 27.2641 c. 9: 1 4 4 SP M DE S SD: 17.1718 c. M:-28.0742 c. 11: 1 5 5 SP M DE S SD: 10.7611 c. M:-18.0127 c. 12: 1 5 6 P T3 SD: 13.1825 c. M: 17.8484 c. 13: 1 6 6 SP M DE S SD: 6.4225 c. M:-11.0471 c. 15: 1 7 7 SP M DE S SD: 3.5036 c. M:-5.9389 c. 17: 1 8 8 SP M DE S SD: 2.1888 c. M: 3.2000 c. 35: 2 17 16 SP T3 SD: 2.1334 c. M:-3.4964 c. 37: 2 18 17 SP T3 SD: 1.3669 c. M:-2.3426 c. 39: 2 19 18 SP T3 SD: 1.2488 c. M: 1.7233 c. 52: 3 25 24 SP T3 SD: 1.1354 c. M:-1.4693 c. 54: 3 26 25 SP T3 SD: 0.4169 c. M:-0.5977 c. 56: 3 27 26 SP T3 SD: 0.3385 c. M: 0.5831 c. 110: 6 53 51 SP T3 SD: 0.1617 c. M:-0.2623 c. 127: 7 61 59 SP T3 SD: 0.1586 c. M: 0.2011 c. 181: 10 87 84 SP T3 SD: 0.1472 c. M:-0.2522 c. 183: 10 88 85 SP T3 SD: 0.0956 c. M: 0.1583 c. 237: 13 114 110 SP T3 SD: 0.0327 c. M:-0.0548 c. 530: 29 255 246 SP T3 SD: 0.0081 c. M: 0.0126 c. 767: 42 369 356 SP T3 SD: 0.0068 c. M:-0.0085 c. 1297: 71 624 602 SP T3 SD: 0.0043 c. M:-0.0075 c. 1827: 100 879 848 SP T3 SD: 0.0046 c. M:-0.0071 c. 2064: 113 993 958 SP T3 SD: 0.0048 c. M:-0.0079 c. 2247: 123 1081 1043 SP T3 SD: 0.0034 c. M: 0.0057 c.
FIT/HARMONIC
1 x x 2 S SD: 701.9550 cents 2 x x 3 S SD: 203.9100 cents 3 x x 4 S SD: 0.0000 cents 4 x x 5 S SD: 111.7313 cents 5 x 6:7 S SD: 48.7680 cents 6 x 7:8 S SD: 0.0000 cents 7 x 8:9 S SD: 36.1882 cents 8 x 9:11 SD: 41.2374 cents 9 x 11:12 SD: 40.2685 cents 10 x 12:13 S SD: 32.7861 cents 11 x 13:15 SD: 22.4315 cents 18:19:21:24 SD: 22.1130 cents 20:21:23:27 SD: 21.9981 cents 21:22:25:28 SD: 21.2428 cents 22:23:26:29 SD: 19.3213 cents 23:24:27:31 SD: 17.0610 cents 24:25:28:32 SD: 14.4694 cents 28:29:33:37 SD: 13.6276 cents 29:30:34:39 SD: 11.9298 cents 30:31:35:40 SD: 9.8343 cents 35:36:41:47 SD: 8.5899 cents 36:37:42:48 SD: 6.7233 cents 41:42:48:55 SD: 6.2889 cents 42:43:49:56 SD: 4.4909 cents 48:49:56:64 S SD: 2.8109 cents 54:55:63:72 SD: 1.5009 cents 60:61:70:80 SD: 0.4507 cents 66:67:77:88 SD: 0.4100 cents 126:128:147:168 SD: 0.0000 cents