Scala analysis: 306_C23

Chromatic tetrachord 16/15 * 75/64 * 16/15, Helmholtz

Generated by Scala: https://www.huygens-fokker.org/scala/

SHOW
  0:          1/1               0.000000 unison, perfect prime
  1:         16/15            111.731285 minor diatonic semitone
  2:          5/4             386.313714 major third
  3:          4/3             498.044999 perfect fourth
SHOW/INTERVAL
  0:         16/15            111.7313 minor diatonic semitone
  1:         16/15            111.7313 minor diatonic semitone
  2:         75/64            274.5824 classic augmented second
  3:         16/15            111.7313 minor diatonic semitone
SHOW INTERVALS
Interval class, Number of incidences, Size:
  1:   2 16/15               111.731 cents  minor diatonic semitone
  1:   1 75/64               274.582 cents  classic augmented second
  2:   1 256/225             223.463 cents  Neapolitan diminished third
  2:   2 5/4                 386.314 cents  major third
Highest number of different intervals for one interval class: 2
Average number of different intervals per interval class: 2.00000 = 2
SHOW/LINE/CENTS INTERVALS
        1     2     3    
 0.0  : 111.7 386.3 498.0
 111.7: 274.6 386.3 498.0
 386.3: 111.7 223.5 498.0
 498.0
SHOW/SPAN INTERVALS
Interval class, Interval span, Span size, Gap to prev. class:
  1:  111.7313  .. 274.5824 cents      1125/1024, 162.8511 cents          16/15, 111.7313 cents
  2:  223.4626  .. 386.3137 cents      1125/1024, 162.8511 cents          16384/16875,-51.1199 cents
SHOW DATA
Number of notes                     : 3
-- Interval properties --
Smallest interval                   : 16/15, 111.7313 cents, class 1
Average step (divided formal octave): 166.0150 cents
Largest one step interval           : 75/64, 274.5824 cents
Average / Smallest step             : 1.485842
Largest / Average step              : 1.653962
Largest / Smallest step             : 2.457525
Median interval of one step         : 16/15, 111.7313 cents, amount: 2
Most common interval of one step    : 16/15, 111.7313 cents, amount: 2
Least squares average step          : 169.89241 cents, oct.:  509.67722 cents
Scale is not proper
Scale has Myhill's property
  chromas: 1125/1024, 162.8511 cents and 16875/16384, 51.1199 cents, ratio: 3.185673
  generators: 1 of 111.73129 cents and 2 of 386.31371 cents
ET pair of linear temperament       : 98&214
Scale is distributional even
Scale is a mode of a 263-tone equal temperament with octave  4/3
  degrees: 59 204 263
  generators: 59 and 204
Number of contiguous 1-step segments: 0
Step pattern alph. order: ABA
Step pattern size order : SLS
Scale is a Constant Structure, by a margin of 51.11986 cents
Scale diversity                     : 1.121851
Lumma stability                     : 0.448679
Lumma impropriety factor            : 0.102641
Rothenberg efficiency               : 0.888889   redundancy: 0.111111
Efficiency x scale size             : 2.666667
Number of different interval sizes  : 4 = 2.00000 / class
Number of one step interval sizes   : 2
Highest interval variety            : 2
Mean interval variety               : 2.00000 = 2
Median interval variety             : 2
Lowest interval variety             : 2
Smallest interval difference        : 16875/16384, 51.1199 cents
Most common intervals               : 16/15, 111.7313 cents & inv., amount: 2
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   : 3 = 100.0000%
2/1 octave complements present      : 0 = 0.0000%
Scale is n-1 differentially coherent in interval class 1
Scale is n-1 differentially coherent in interval class 2
Inversional symmetry on degrees     :
 0
Inversional symmetry on intervals   :
 1-2
-- Rational properties --
Prime limit                         : 5
Odd number limit                    : 225 (O: 75 U: 225)
Highest odd numerator or denominator: 15
Scale harmonicity                   : 0.046584
Average absolute harmonicity        : 0.136621
Specific harmonicity                : 0.231660
Fundamental                         : 1/60, -5.9069 octaves, 4.3604 Hz.
Guide tone                          : 80,  6.3219 octaves, 20930.045 Hz.
Exponens Consonantiae               : 4.800000E+03, 12.22882 octaves
Euler's gradus suavitatis           : 17
Sum of Mann's harmonic distance     : 23.5, average 7.83333
Mersenne's string divisions         : 1953
Sum of van Prooijen's expressibility: 2.35218, average 0.78406
Sum of Tenney's harmonic distance   : 4.76042, average 1.58681
Vogel's harmonic complexity         : 9.33333
Wille's k value                     : 37
Wilson's harmonic complexity        : 13
Rectangular lattice diameter        : 3
Triangular lattice diameter         : 3
Lattice compactness                 : 21.59661, average 3.59943
Lattice compactness (without 2's)   : 8.06450, average 1.34408
Number of different primes          : 3
Prime exponents' range, average, count, tones@limit:
  2:  -2 .. 4         1.33333   8
  3:  -1 .. 0        -0.66667   2     1
  5:  -1 .. 1         0.00000   2     2
Average exponent except 2's         :-2 / 3 =-0.66667
Average absolute exponent except 2's: 4 / 3 = 1.33333
Scale is weakly epimorphic with val: <7 11 15|
Scale is JI-epimorphic with val: <7 11 16|
Scale is weakly epimorphic with val: <7 11 18|
Scale is weakly epimorphic with val: <7 11 19|
FIT/MODE
  3:  1 1 1  SP B ME I SD: 44.3225 c. M: 54.2837 c. 
  4:  1 2 1   P M ME I SD: 10.4348 c. M: 12.7800 c. 
  5:  1 3 1   N M DE I SD: 9.8978 c. M: 12.1223 c. 
  9:  2 5 2   N M DE I SD: 0.8611 c. M: 1.0546 c. 
 31:  7 17 7   N M DE I SD: 0.5964 c. M: 0.7305 c. 
 40:  9 22 9   N M DE I SD: 0.2685 c. M: 0.3288 c. 
 49:  11 27 11   N M DE I SD: 0.0610 c. M: 0.0747 c. 
 107: 24 59 24   N M DE I SD: 0.0165 c. M: 0.0203 c. 
 156: 35 86 35   N M DE I SD: 0.0078 c. M:-0.0096 c. 
 263: 59 145 59   N M DE I SD: 0.0021 c. M: 0.0026 c. 
 419: 94 231 94   N M DE I SD: 0.0016 c. M: 0.0020 c. 
 682: 153 376 153   N M DE I SD: 0.0002 c. M: 0.0002 c. 
 2309: 518 1273 518   N M DE I SD: 0.0001 c. M: 0.0001 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 5 x  S SD: 0.0000 cents
 5 x 6:7  S SD: 55.0665 cents
 6 x x 8  S SD: 0.0000 cents
 7:8:9 x  S SD: 64.5080 cents
 8:9:10:11  H SD: 35.4885 cents
 9:10:11:12  H SD: 26.8912 cents
 10:11 x 13    SD: 34.4934 cents
 11:12:14:15  S SD: 21.0829 cents
 12:13:15:16    SD: 8.9471 cents
 15:16:19:20    SD: 7.6435 cents
 27:29:34:36    SD: 5.8384 cents
 28:30:35:37    SD: 5.7788 cents
 32:34:40:43    SD: 5.0269 cents
 33:35:41:44    SD: 4.8082 cents
 43:46:54:57    SD: 4.6151 cents
 44:47:55:59    SD: 3.3706 cents
 45:48:56:60  S SD: 2.5705 cents
 48:51:60:64    SD: 2.2586 cents
 60:64:75:80    SD: 0.0000 cents