Scala analysis: 245_C17
Chromatic tetrachord 18/17 * 17/16 * 32/27, Aristides Quint.
Generated by Scala: https://www.huygens-fokker.org/scala/
SHOW
0: 1/1 0.000000 unison, perfect prime 1: 18/17 98.954592 Arabic lute index finger 2: 9/8 203.910002 major whole tone 3: 4/3 498.044999 perfect fourth
SHOW/INTERVAL
0: 32/27 294.1350 Pythagorean minor third 1: 18/17 98.9546 Arabic lute index finger 2: 17/16 104.9554 17th harmonic 3: 32/27 294.1350 Pythagorean minor third
SHOW INTERVALS
Interval class, Number of incidences, Size: 1: 1 18/17 98.955 cents Arabic lute index finger 1: 1 17/16 104.955 cents 17th harmonic 1: 1 32/27 294.135 cents Pythagorean minor third 2: 1 9/8 203.910 cents major whole tone 2: 1 64/51 393.090 cents 2: 1 34/27 399.090 cents septendecimal major third 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 : 99.0 203.9 498.0 99.0 : 105.0 399.1 498.0 203.9: 294.1 393.1 498.0 498.0
SHOW/SPAN INTERVALS
Interval class, Interval span, Span size, Gap to prev. class: 1: 98.9546 .. 294.1350 cents 272/243, 195.1804 cents 18/17, 98.9546 cents 2: 203.9100 .. 399.0904 cents 272/243, 195.1804 cents 243/256,-90.2250 cents
SHOW DATA
Number of notes : 3 -- Interval properties -- Smallest interval : 18/17, 98.9546 cents, class 1 Average step (divided formal octave): 166.0150 cents Largest one step interval : 32/27, 294.1350 cents Average / Smallest step : 1.677689 Largest / Average step : 1.771737 Largest / Smallest step : 2.972424 Median interval of one step : 17/16, 104.9554 cents, amount: 1 Least squares average step : 142.92211 cents, oct.: 428.76634 cents Scale is not proper Scale has trivalence property Scale is a mode of a 1827-tone equal temperament with octave 4/3 degrees: 363 748 1827 Least number of segments generator : 914 of 249.159 cents and inv. number of contiguous generator circle segments: 1 Shortest superset generator : 1724 of 469.967 cents and inv. generated superset size: 40 = 37 more = 1333.333% Number of contiguous 1-step segments: 0 Step pattern alph. order: ABC Step pattern size order : SML Scale is sum-free (all different intervals) Scale is a Constant Structure, by a margin of 90.22500 cents Scale diversity : 1.093641 Lumma stability : 0.397372 Lumma impropriety factor : 0.181158 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 : 289/288, 6.0008 cents Number of recognisable fifths : 0 Number of recognisable fourths : 0 Steps are strictly increasing Length of longest harmonic part : 1 at degree 0 Length of longest subharmonic part : 2 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 189.1796 cents: 2 -- Rational properties -- Prime limit : 17 Odd number limit : 51 (O: 17 U: 51) Highest odd numerator or denominator: 17 Scale harmonicity : 0.023192 Average absolute harmonicity : 0.120573 Specific harmonicity : 0.117919 Fundamental : 1/408, -8.6724 octaves, 0.6412 Hz. Guide tone : 36, 5.1699 octaves, 9418.520 Hz. Exponens Consonantiae : 1.468800E+04, 13.84235 octaves Euler's gradus suavitatis : 28 Sum of Mann's harmonic distance : 29.5, average 9.83333 Mersenne's string divisions : 595 Sum of van Prooijen's expressibility: 2.66181, average 0.88727 Sum of Tenney's harmonic distance : 5.42224, average 1.80741 Vogel's harmonic complexity : 20.33333 Wille's k value : 229 Wilson's harmonic complexity : 26 Rectangular lattice diameter : 4 Triangular lattice diameter : 3 Lattice compactness : 21.56179, average 3.59363 Lattice compactness (without 2's) : 12.39835, average 2.06639 Number of different primes : 3 Prime exponents' range, average, count, tones@limit: 2: -3 .. 2 0.00000 6 3: -1 .. 2 1.00000 5 2 17: -1 .. 0 -0.33333 1 1 Average exponent except 2's : 2 / 3 = 0.66667 Average absolute exponent except 2's: 6 / 3 = 2.00000 Scale is weakly epimorphic with val: <7 11 27| Scale is weakly epimorphic with val: <7 11 30| = patent Scale is weakly epimorphic with val: <7 11 33| Scale is weakly epimorphic with val: <7 12 27| Scale is weakly epimorphic with val: <7 12 30| Scale is weakly epimorphic with val: <7 12 33| Scale is weakly epimorphic with val: <8 11 27|
FIT/MODE
3: 0 1 2 N G T3 SD: 61.1775 c. M: 98.9546 c. 4: 1 1 2 P M ME S SD: 29.9348 c. M:-45.1125 c. 5: 1 1 3 N M DE S SD: 2.7351 c. M: 4.6920 c. 29: 6 6 17 N M DE S SD: 2.6748 c. M:-4.0892 c. 34: 7 7 20 N M DE S SD: 2.1763 c. M:-3.5841 c. 39: 8 8 23 N M DE S SD: 1.8679 c. M:-3.2085 c. 41: 8 9 24 N T3 SD: 1.8159 c. M:-2.5965 c. 44: 9 9 26 N M DE S SD: 1.6875 c. M:-2.9182 c. 46: 9 10 27 N T3 SD: 1.3587 c. M:-1.8042 c. 51: 10 11 30 N T3 SD: 1.0082 c. M: 1.2987 c. 56: 11 12 33 N T3 SD: 0.7481 c. M: 1.1243 c. 61: 12 13 36 N T3 SD: 0.5774 c. M: 0.9785 c. 66: 13 14 39 N T3 SD: 0.5026 c. M: 0.8548 c. 71: 14 15 42 N T3 SD: 0.5144 c. M: 0.7485 c. 95: 19 20 56 N T3 SD: 0.4938 c. M:-0.6544 c. 100: 20 21 59 N T3 SD: 0.4129 c. M:-0.6544 c. 105: 21 22 62 N T3 SD: 0.3790 c. M:-0.6544 c. 151: 30 32 89 N T3 SD: 0.3379 c. M:-0.5853 c. 156: 31 33 92 N T3 SD: 0.2404 c. M:-0.4162 c. 161: 32 34 95 N T3 SD: 0.1501 c. M:-0.2575 c. 166: 33 35 98 N T3 SD: 0.0700 c. M:-0.1084 c. 171: 34 36 101 N T3 SD: 0.0454 c. M:-0.0719 c. 337: 67 71 199 N T3 SD: 0.0424 c. M:-0.0633 c. 503: 100 106 297 N T3 SD: 0.0494 c. M:-0.0607 c. 508: 101 107 300 N T3 SD: 0.0390 c. M:-0.0662 c. 569: 113 120 336 N T3 SD: 0.0332 c. M: 0.0458 c. 574: 114 121 339 N T3 SD: 0.0232 c. M: 0.0397 c. 740: 147 156 437 N T3 SD: 0.0155 c. M:-0.0192 c. 745: 148 157 440 N T3 SD: 0.0108 c. M: 0.0141 c. 911: 181 192 538 N T3 SD: 0.0056 c. M:-0.0096 c. 1082: 215 228 639 N T3 SD: 0.0060 c. M:-0.0100 c. 1656: 329 349 978 N T3 SD: 0.0042 c. M: 0.0072 c. 1827: 363 385 1079 N T3 SD: 0.0019 c. M: 0.0032 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: 70.0332 cents 6 x 7:8 S SD: 31.4805 cents 7 x 8:9 S SD: 34.3053 cents 8 x 9:11 SD: 26.6365 cents 9 x 10:12 S SD: 10.7531 cents 10 x 11:13 SD: 29.3037 cents 11:12 x 15 S SD: 32.3448 cents 12:13:14:16 S SD: 24.7962 cents 13:14:15:17 SD: 20.8495 cents 14:15:16:19 SD: 15.2827 cents 15:16:17:20 SD: 6.0230 cents 31:33:35:41 SD: 5.9726 cents 32:34:36:43 SD: 4.9162 cents 33:35:37:44 SD: 2.1749 cents 48:51:54:64 SD: 2.0003 cents 72:76:81:96 SD: 1.7839 cents 81:86:91:108 SD: 1.7684 cents 87:92:98:116 SD: 1.0423 cents 120:127:135:160 SD: 0.2672 cents 255:270:287:340 SD: 0.2514 cents 288:305:324:384 SD: 0.1113 cents 408:432:459:544 SD: 0.0000 cents